subject:(Methane)

University of Waikato

1. Hamill, Jacob. Methane emission hotspots from a drained peat soil under dairy grazing .

Degree: 2019, University of Waikato

► Methane (CH4) is a greenhouse gas that is emitted from natural peatland ecosystems due to their high water tables. However, large areas of natural peatlands… (more)

▼ Methane (CH4) is a greenhouse gas that is emitted from natural peatland ecosystems due to their high water tables. However, large areas of natural peatlands have been drained for agricultural purposes, resulting in a reduction in overall methane emissions. However, where soil is saturated, such as within or adjacent to drainage ditches, methane emission can remain high. The aim of this research was to determine the magnitude of soil- and drainage ditch-derived methane emissions from a drained Waikato peatland under dairy grazing and where and when these emissions occur. Gamma Farm is a pastoral dairy farm located on the remnants of the Moanatuatua peatland and drained by shallow surface “spinner” drains that discharge into deeper field-border drains. The paddocks were classified into four different landforms based on the location and hydrology of the drainage features. These landforms are crown, slope, ditch edge and drainage ditch. To adequately determine the spatial and temporal variation in methane fluxes chamber measurements of methane fluxes were undertaken along a transect across the width of the study site, approximately perpendicular to the border drains. A campaign approach was used, with chamber measurements being undertaken from autumn through to winter to capture methane fluxes under different environmental conditions. To measure seasonal and annual-scale methane emissions an eddy covariance flux tower was used. Based on chamber measurements drainage ditches were shown to have average methane emissions of 0.071 ± 0.005 mg CH4 m-2 h-1 . Conversely, the soil of the crown, slope and ditch edges were shown to be a net methane sink, with average net methane oxidation of ‒0.019 ± 0.006, ‒0.01 ± 0.008 and ‒0.023 ± 0.006 mg CH4 m-2 h-1 respectively. Weighting the chamber measurements by landform area it was concluded that the study site was primarily a minor net methane sink. However, eddy covariance measurements indicated that the study site was a net source of methane with annual emissions of 44.72 kg CH4 ha-1 yr-1 . This large discrepancy between the chamber and eddy covariance measurements is likely caused by the large spatial and temporal scale differences between the two measurement techniques. In addition, it was found that there was no relationship between soil methane fluxes and the soil temperature, Olsen-P, and nitrate concentration. However, methane fluxes were shown to decrease as the ammonium concentration and depth to the water table increased. In addition, methane fluxes decreased as volumetric moisture content (VMC) decreased, but at low VMCs (<40%) methane fluxes tended towards zero. For the water-borne methane fluxes there was no relationship found between methane fluxes and any measured variable (pH, dissolved oxygen, electrical conductivity, water temperature, water depth, nitrate concentration or dissolved phosphorus). However, at longer time scales such as monthly averages of eddy covariance measurements, methane fluxes were positively correlated with soil temperature and air… Advisors/Committee Members: Campbell, David I (advisor).

Subjects/Keywords: Methane; Peat; Methane emissions

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APA (6^th Edition):

Hamill, J. (2019). Methane emission hotspots from a drained peat soil under dairy grazing . (Masters Thesis). University of Waikato. Retrieved from http://hdl.handle.net/10289/13481

Chicago Manual of Style (16^th Edition):

Hamill, Jacob. “Methane emission hotspots from a drained peat soil under dairy grazing .” 2019. Masters Thesis, University of Waikato. Accessed March 04, 2021. http://hdl.handle.net/10289/13481.

MLA Handbook (7^th Edition):

Hamill, Jacob. “Methane emission hotspots from a drained peat soil under dairy grazing .” 2019. Web. 04 Mar 2021.

Vancouver:

Hamill J. Methane emission hotspots from a drained peat soil under dairy grazing . [Internet] [Masters thesis]. University of Waikato; 2019. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/10289/13481.

Council of Science Editors:

Hamill J. Methane emission hotspots from a drained peat soil under dairy grazing . [Masters Thesis]. University of Waikato; 2019. Available from: http://hdl.handle.net/10289/13481

University of Minnesota

2. Banerjee, Rahul. Kinetic and spectroscopic characterization of intermediates in the soluble methane monooxygenase catalytic cycle: the old and the new.

Degree: PhD, Biochemistry, Molecular Bio, and Biophysics, 2013, University of Minnesota

URL: http://hdl.handle.net/11299/162797

► Soluble methane monooxygenase (sMMO) catalyzes the difficult reaction of oxidative hydroxylation of methane to methanol, thereby allowing the host methanotroph to grow on methane as… (more)

▼ Soluble methane monooxygenase (sMMO) catalyzes the difficult reaction of oxidative hydroxylation of methane to methanol, thereby allowing the host methanotroph to grow on methane as the sole source of carbon and energy. As methane possesses the strongest aliphatic C-H bond, the chemical mechanism of this enzyme is the epitome of oxygen activation in metalloenzymes. Exhaustive research of the catalytic mechanism of sMMO in recent years has elucidated many aspects of the chemistry occurring at the dinuclear iron active site center. These studies include the three dimensional structures of the protein components of sMMO and fairly detailed outlines of both the chemical mechanism and the method of regulatory control. The discovery of a diferric peroxo intermediate P, and more crucially, a high valent bis-μ-oxo diiron(IV) intermediate Q have provided the greatest advances in the understanding of oxygen activation in diiron oxygenases. The research described here has extended this understanding in several aspects. A long standing issue of low accumulation of enzyme reaction intermediates for spectroscopic studies has been addressed and in part solved. A new intermediate P* that had been proposed to exist based on kinetic studies has been trapped and characterized through spectroscopic techniques. P* appears to be a diferrous cluster intermediate that binds O2 weakly with little transfer of charge density onto the oxygen atoms. This result suggests a general theme for heme and non-heme oxygen activating enzymes in which ferrous centers initially form a weak complex with O2, which is strengthened in following steps by interactions such as stabilizing hydrogen bonds and charge donation from trans ligands. The long sought after goal of characterization of the vibrational spectrum of compound Q has been achieved through a time resolved resonance Raman technique. The preliminary results corroborate the diamond core structure that has been proposed for Q. Another putative high valent intermediate Q' has been discovered to arise from compound Q in the catalytic cycle. This is potentially a very significant finding as it seem likely that Q' rather than Q reacts directly with substrate. Following from a precedent from synthetic diiron model compound studies, it is possible that Q' is an open core form of the Q intermediate in which a reactive, terminal Fe(IV)=O moiety replaces the more stable bis-μ-oxo bridging structure.

Subjects/Keywords: Methane; Methane monooxygenase; Oxygen

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APA (6^th Edition):

Banerjee, R. (2013). Kinetic and spectroscopic characterization of intermediates in the soluble methane monooxygenase catalytic cycle: the old and the new. (Doctoral Dissertation). University of Minnesota. Retrieved from http://hdl.handle.net/11299/162797

Chicago Manual of Style (16^th Edition):

Banerjee, Rahul. “Kinetic and spectroscopic characterization of intermediates in the soluble methane monooxygenase catalytic cycle: the old and the new.” 2013. Doctoral Dissertation, University of Minnesota. Accessed March 04, 2021. http://hdl.handle.net/11299/162797.

MLA Handbook (7^th Edition):

Banerjee, Rahul. “Kinetic and spectroscopic characterization of intermediates in the soluble methane monooxygenase catalytic cycle: the old and the new.” 2013. Web. 04 Mar 2021.

Vancouver:

Banerjee R. Kinetic and spectroscopic characterization of intermediates in the soluble methane monooxygenase catalytic cycle: the old and the new. [Internet] [Doctoral dissertation]. University of Minnesota; 2013. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/11299/162797.

Council of Science Editors:

Banerjee R. Kinetic and spectroscopic characterization of intermediates in the soluble methane monooxygenase catalytic cycle: the old and the new. [Doctoral Dissertation]. University of Minnesota; 2013. Available from: http://hdl.handle.net/11299/162797

University of Aberdeen

3. McMahon, Sean. Mars, methane and microbes :.

Degree: Dept. of Geology & Petroleum Geology., 2014, University of Aberdeen

URL: http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?application=DIGITOOL-3&owner=resourcediscovery&custom_att_2=simple_viewer&pid=214837 ; http://digitool.abdn.ac.uk:1801/webclient/DeliveryManager?pid=214837&custom_att_2=simple_viewer

Subjects/Keywords: Methane; Methane

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APA (6^th Edition):

McMahon, S. (2014). Mars, methane and microbes :. (Doctoral Dissertation). University of Aberdeen. Retrieved from http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?application=DIGITOOL-3&owner=resourcediscovery&custom_att_2=simple_viewer&pid=214837 ; http://digitool.abdn.ac.uk:1801/webclient/DeliveryManager?pid=214837&custom_att_2=simple_viewer

Chicago Manual of Style (16^th Edition):

McMahon, Sean. “Mars, methane and microbes :.” 2014. Doctoral Dissertation, University of Aberdeen. Accessed March 04, 2021. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?application=DIGITOOL-3&owner=resourcediscovery&custom_att_2=simple_viewer&pid=214837 ; http://digitool.abdn.ac.uk:1801/webclient/DeliveryManager?pid=214837&custom_att_2=simple_viewer.

MLA Handbook (7^th Edition):

McMahon, Sean. “Mars, methane and microbes :.” 2014. Web. 04 Mar 2021.

Vancouver:

McMahon S. Mars, methane and microbes :. [Internet] [Doctoral dissertation]. University of Aberdeen; 2014. [cited 2021 Mar 04]. Available from: http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?application=DIGITOOL-3&owner=resourcediscovery&custom_att_2=simple_viewer&pid=214837 ; http://digitool.abdn.ac.uk:1801/webclient/DeliveryManager?pid=214837&custom_att_2=simple_viewer.

Council of Science Editors:

McMahon S. Mars, methane and microbes :. [Doctoral Dissertation]. University of Aberdeen; 2014. Available from: http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?application=DIGITOOL-3&owner=resourcediscovery&custom_att_2=simple_viewer&pid=214837 ; http://digitool.abdn.ac.uk:1801/webclient/DeliveryManager?pid=214837&custom_att_2=simple_viewer

Oregon State University

4. Duggan, Kenneth Everett. Pilot plant production of methane by anaerobic fermentation of pear waste.

Degree: MS, Food Technology, 1950, Oregon State University

URL: http://hdl.handle.net/1957/26285

Subjects/Keywords: Methane

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APA (6^th Edition):

Duggan, K. E. (1950). Pilot plant production of methane by anaerobic fermentation of pear waste. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/26285

Chicago Manual of Style (16^th Edition):

Duggan, Kenneth Everett. “Pilot plant production of methane by anaerobic fermentation of pear waste.” 1950. Masters Thesis, Oregon State University. Accessed March 04, 2021. http://hdl.handle.net/1957/26285.

MLA Handbook (7^th Edition):

Duggan, Kenneth Everett. “Pilot plant production of methane by anaerobic fermentation of pear waste.” 1950. Web. 04 Mar 2021.

Vancouver:

Duggan KE. Pilot plant production of methane by anaerobic fermentation of pear waste. [Internet] [Masters thesis]. Oregon State University; 1950. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/1957/26285.

Council of Science Editors:

Duggan KE. Pilot plant production of methane by anaerobic fermentation of pear waste. [Masters Thesis]. Oregon State University; 1950. Available from: http://hdl.handle.net/1957/26285

Oregon State University

5. Harnik, George William. A preliminary investigation on methane gas production from pear waste.

Degree: MS, Food Technology, 1948, Oregon State University

URL: http://hdl.handle.net/1957/26012

Subjects/Keywords: Methane

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APA (6^th Edition):

Harnik, G. W. (1948). A preliminary investigation on methane gas production from pear waste. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/26012

Chicago Manual of Style (16^th Edition):

Harnik, George William. “A preliminary investigation on methane gas production from pear waste.” 1948. Masters Thesis, Oregon State University. Accessed March 04, 2021. http://hdl.handle.net/1957/26012.

MLA Handbook (7^th Edition):

Harnik, George William. “A preliminary investigation on methane gas production from pear waste.” 1948. Web. 04 Mar 2021.

Vancouver:

Harnik GW. A preliminary investigation on methane gas production from pear waste. [Internet] [Masters thesis]. Oregon State University; 1948. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/1957/26012.

Council of Science Editors:

Harnik GW. A preliminary investigation on methane gas production from pear waste. [Masters Thesis]. Oregon State University; 1948. Available from: http://hdl.handle.net/1957/26012

Oregon State University

6. Lambrecht, William Anthony. Methane production by anaerobic fermentation of pear waste.

Degree: MS, Food Technology, 1948, Oregon State University

URL: http://hdl.handle.net/1957/26167

Subjects/Keywords: Methane

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APA (6^th Edition):

Lambrecht, W. A. (1948). Methane production by anaerobic fermentation of pear waste. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/26167

Chicago Manual of Style (16^th Edition):

Lambrecht, William Anthony. “Methane production by anaerobic fermentation of pear waste.” 1948. Masters Thesis, Oregon State University. Accessed March 04, 2021. http://hdl.handle.net/1957/26167.

MLA Handbook (7^th Edition):

Lambrecht, William Anthony. “Methane production by anaerobic fermentation of pear waste.” 1948. Web. 04 Mar 2021.

Vancouver:

Lambrecht WA. Methane production by anaerobic fermentation of pear waste. [Internet] [Masters thesis]. Oregon State University; 1948. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/1957/26167.

Council of Science Editors:

Lambrecht WA. Methane production by anaerobic fermentation of pear waste. [Masters Thesis]. Oregon State University; 1948. Available from: http://hdl.handle.net/1957/26167

Oregon State University

7. Lin, Yi-Chun. Maximum specific growth rates of mixed anaerobic populations at psychrophilic temperatures.

Degree: MS, Bioresource Engineering, 1995, Oregon State University

URL: http://hdl.handle.net/1957/34881

Subjects/Keywords: Methane

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APA (6^th Edition):

Lin, Y. (1995). Maximum specific growth rates of mixed anaerobic populations at psychrophilic temperatures. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/34881

Chicago Manual of Style (16^th Edition):

Lin, Yi-Chun. “Maximum specific growth rates of mixed anaerobic populations at psychrophilic temperatures.” 1995. Masters Thesis, Oregon State University. Accessed March 04, 2021. http://hdl.handle.net/1957/34881.

MLA Handbook (7^th Edition):

Lin, Yi-Chun. “Maximum specific growth rates of mixed anaerobic populations at psychrophilic temperatures.” 1995. Web. 04 Mar 2021.

Vancouver:

Lin Y. Maximum specific growth rates of mixed anaerobic populations at psychrophilic temperatures. [Internet] [Masters thesis]. Oregon State University; 1995. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/1957/34881.

Council of Science Editors:

Lin Y. Maximum specific growth rates of mixed anaerobic populations at psychrophilic temperatures. [Masters Thesis]. Oregon State University; 1995. Available from: http://hdl.handle.net/1957/34881

Montana State University

8. Barnhart, Elliott Paul. Analysis of methane producing communities within underground coal beds.

Degree: MS, College of Letters & Science, 2011, Montana State University

URL: https://scholarworks.montana.edu/xmlui/handle/1/874

► The Powder River Basin in southeastern Montana and northeast Wyoming is the largest source of coal mined in the United States but most of the… (more)

▼ The Powder River Basin in southeastern Montana and northeast Wyoming is the largest source of coal mined in the United States but most of the coal contained in the basin is buried too deeply to be economically accessible. These remote coal beds are dynamic zones where biogeochemical processes work to sustain a microbial ecosystem. Previous work has shown that a direct byproduct of these microbial processes is biogenic methane that can be harvested and utilized as an energy source. Methane is the principle component of natural gas and this can be used as an energy source for electricity generation, heat and transportation fuel producing only carbon dioxide and water when burned in the presence of oxygen. The only known organisms on the planet able to produce methane are classified as Archaea, microorganisms termed methanogens. However, little is known about the responsible methanogens, the conditions conducive to coal-associated methane production, nor the microbial community interactions that promote methane production. Advances in subsurface sampling and molecular techniques have provided a route to capture active microbial consortia from coal beds, but methods need to be refined in order to deal with the unique attributes of coal. Microorganisms involved in coal bed methane (CBM) formation were investigated by applying molecular methods in combination with cultivation techniques with and without nutrient supplementation to maximize methane production in batch, bench-scale incubations. Our research suggests that Clostridium species are involved with the breakdown of coal and Acetobacterium species are able to utilize substrates produced by the coal degradation. Coal and yeast extract each appear to contribute important nutrients that stimulate coal degrading communities. A better understanding of this microbial system and the biotic and abiotic parameters that control activity may permit microbially enhanced CBM production in situ to become an industrially sustainable process through the application of suitable methane stimulation strategies. Advisors/Committee Members: Chairperson, Graduate Committee: Matthew Fields (advisor).

Subjects/Keywords: Coalbed methane.

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APA (6^th Edition):

Barnhart, E. P. (2011). Analysis of methane producing communities within underground coal beds. (Masters Thesis). Montana State University. Retrieved from https://scholarworks.montana.edu/xmlui/handle/1/874

Chicago Manual of Style (16^th Edition):

Barnhart, Elliott Paul. “Analysis of methane producing communities within underground coal beds.” 2011. Masters Thesis, Montana State University. Accessed March 04, 2021. https://scholarworks.montana.edu/xmlui/handle/1/874.

MLA Handbook (7^th Edition):

Barnhart, Elliott Paul. “Analysis of methane producing communities within underground coal beds.” 2011. Web. 04 Mar 2021.

Vancouver:

Barnhart EP. Analysis of methane producing communities within underground coal beds. [Internet] [Masters thesis]. Montana State University; 2011. [cited 2021 Mar 04]. Available from: https://scholarworks.montana.edu/xmlui/handle/1/874.

Council of Science Editors:

Barnhart EP. Analysis of methane producing communities within underground coal beds. [Masters Thesis]. Montana State University; 2011. Available from: https://scholarworks.montana.edu/xmlui/handle/1/874

California State Polytechnic University – Pomona

9. Zohbe, Noah. Methane Origins in Shallow Aquifers: Deciphering a Compilation of Publicly Available Data.

Degree: MS, Department of Geological Sciences, 2020, California State Polytechnic University – Pomona

URL: http://hdl.handle.net/10211.3/215375

► The current inability to address the possible relationship of unconventional oil and gas (UOG) production with discrete concentrations of dissolved thermogenic gases in overlying shallow… (more)

▼ The current inability to address the possible relationship of unconventional oil and gas (UOG) production with discrete concentrations of dissolved thermogenic gases in overlying shallow aquifers represents a knowledge gap existing in today???s research. This study is a first-order effort of its kind and seeks to help address the aforementioned knowledge gap by attempting a cumulative review of publicly available groundwater data from six different basins across the United States that host UOG reservoirs. Here, groundwater data was mined from August 2015 to August 2016. Data was compiled from federal and state databases, inquiries with groundwater researchers, and various peer reviewed scientific studies conducted across the United States. This data compilation was then evaluated for widespread distinctions in dissolved methane (carbon isotopic composition (??13C1,) molecular composition (C1/C2), concentration (mgL-1)) in shallow groundwaters overlying production zones. Shallow aquifer data from these six basins plotted in discrete groups, indicating variable gas types and implying different gas transport mechanisms. However, factors dictating natural gas source and distribution within shallow aquifers are unquestionably multivariate. Thus, several qualitatively defined parameters including basin type and age, vertical distance between shallow aquifer and produced unit, and zones of structural weakness (e.g., faults and fractured networks) were chosen for an evaluation in juxtaposition with dissolved gas data analysis. This study may be a precursor to a more comprehensive understanding of the natural gas transport mechanisms and sources in UOG-hosting basins. Finally, this study may also shed light on whether risk of gas migration to aquifers may vary basin to basin as a reflection of general variability in basin structures, and what publicly available data sets can reveal regarding dominant types of shallow aquifer methane. Advisors/Committee Members: Osborn, Stephen (advisor), Nourse, Jon (committee member).

Subjects/Keywords: dissolved methane

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APA (6^th Edition):

Zohbe, N. (2020). Methane Origins in Shallow Aquifers: Deciphering a Compilation of Publicly Available Data. (Masters Thesis). California State Polytechnic University – Pomona. Retrieved from http://hdl.handle.net/10211.3/215375

Chicago Manual of Style (16^th Edition):

Zohbe, Noah. “Methane Origins in Shallow Aquifers: Deciphering a Compilation of Publicly Available Data.” 2020. Masters Thesis, California State Polytechnic University – Pomona. Accessed March 04, 2021. http://hdl.handle.net/10211.3/215375.

MLA Handbook (7^th Edition):

Zohbe, Noah. “Methane Origins in Shallow Aquifers: Deciphering a Compilation of Publicly Available Data.” 2020. Web. 04 Mar 2021.

Vancouver:

Zohbe N. Methane Origins in Shallow Aquifers: Deciphering a Compilation of Publicly Available Data. [Internet] [Masters thesis]. California State Polytechnic University – Pomona; 2020. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/10211.3/215375.

Council of Science Editors:

Zohbe N. Methane Origins in Shallow Aquifers: Deciphering a Compilation of Publicly Available Data. [Masters Thesis]. California State Polytechnic University – Pomona; 2020. Available from: http://hdl.handle.net/10211.3/215375

University of Edinburgh

10. Bloom, A. Anthony. Satellite based estimation of global biogenic methane emissions.

Degree: PhD, 2011, University of Edinburgh

URL: http://hdl.handle.net/1842/10551

► Atmospheric CH4 is derived from both natural and anthropogenic sources, and the rapid increase in atmospheric CH4 levels over the past two centuries has predominantly… (more)

Subjects/Keywords: 363.738; methane

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APA (6^th Edition):

Bloom, A. A. (2011). Satellite based estimation of global biogenic methane emissions. (Doctoral Dissertation). University of Edinburgh. Retrieved from http://hdl.handle.net/1842/10551

Chicago Manual of Style (16^th Edition):

Bloom, A Anthony. “Satellite based estimation of global biogenic methane emissions.” 2011. Doctoral Dissertation, University of Edinburgh. Accessed March 04, 2021. http://hdl.handle.net/1842/10551.

MLA Handbook (7^th Edition):

Bloom, A Anthony. “Satellite based estimation of global biogenic methane emissions.” 2011. Web. 04 Mar 2021.

Vancouver:

Bloom AA. Satellite based estimation of global biogenic methane emissions. [Internet] [Doctoral dissertation]. University of Edinburgh; 2011. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/1842/10551.

Council of Science Editors:

Bloom AA. Satellite based estimation of global biogenic methane emissions. [Doctoral Dissertation]. University of Edinburgh; 2011. Available from: http://hdl.handle.net/1842/10551

University of British Columbia

11. Buchanan, James Balfour. The decomposition of methane induced by free radicals.

Degree: MA- MA, Chemistry, 1946, University of British Columbia

URL: http://hdl.handle.net/2429/39203

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Subjects/Keywords: Methane

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APA (6^th Edition):

Buchanan, J. B. (1946). The decomposition of methane induced by free radicals. (Masters Thesis). University of British Columbia. Retrieved from http://hdl.handle.net/2429/39203

Chicago Manual of Style (16^th Edition):

Buchanan, James Balfour. “The decomposition of methane induced by free radicals.” 1946. Masters Thesis, University of British Columbia. Accessed March 04, 2021. http://hdl.handle.net/2429/39203.

MLA Handbook (7^th Edition):

Buchanan, James Balfour. “The decomposition of methane induced by free radicals.” 1946. Web. 04 Mar 2021.

Vancouver:

Buchanan JB. The decomposition of methane induced by free radicals. [Internet] [Masters thesis]. University of British Columbia; 1946. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/2429/39203.

Council of Science Editors:

Buchanan JB. The decomposition of methane induced by free radicals. [Masters Thesis]. University of British Columbia; 1946. Available from: http://hdl.handle.net/2429/39203

Michigan State University

12. Holloway, Richard Lee. A study of the methanation of a flowing H₂-Co gas mixture in a plasma catalyzed reactor.

Degree: MS, Dept. of Chemical Engineering, 1973, Michigan State University

URL: http://etd.lib.msu.edu/islandora/object/etd:11308

Subjects/Keywords: Methane

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APA (6^th Edition):

Holloway, R. L. (1973). A study of the methanation of a flowing H₂-Co gas mixture in a plasma catalyzed reactor. (Masters Thesis). Michigan State University. Retrieved from http://etd.lib.msu.edu/islandora/object/etd:11308

Chicago Manual of Style (16^th Edition):

Holloway, Richard Lee. “A study of the methanation of a flowing H₂-Co gas mixture in a plasma catalyzed reactor.” 1973. Masters Thesis, Michigan State University. Accessed March 04, 2021. http://etd.lib.msu.edu/islandora/object/etd:11308.

MLA Handbook (7^th Edition):

Holloway, Richard Lee. “A study of the methanation of a flowing H₂-Co gas mixture in a plasma catalyzed reactor.” 1973. Web. 04 Mar 2021.

Vancouver:

Holloway RL. A study of the methanation of a flowing H₂-Co gas mixture in a plasma catalyzed reactor. [Internet] [Masters thesis]. Michigan State University; 1973. [cited 2021 Mar 04]. Available from: http://etd.lib.msu.edu/islandora/object/etd:11308.

Council of Science Editors:

Holloway RL. A study of the methanation of a flowing H₂-Co gas mixture in a plasma catalyzed reactor. [Masters Thesis]. Michigan State University; 1973. Available from: http://etd.lib.msu.edu/islandora/object/etd:11308

Michigan State University

13. Way, Kermit Rainsford. Formation of the protonated methane ion, CH₅, in the mass spectrum of 2-methoxyethanol.

Degree: MS, Dept. of Chemistry, 1965, Michigan State University

URL: http://etd.lib.msu.edu/islandora/object/etd:13772

Subjects/Keywords: Methane

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APA (6^th Edition):

Way, K. R. (1965). Formation of the protonated methane ion, CH₅, in the mass spectrum of 2-methoxyethanol. (Masters Thesis). Michigan State University. Retrieved from http://etd.lib.msu.edu/islandora/object/etd:13772

Chicago Manual of Style (16^th Edition):

Way, Kermit Rainsford. “Formation of the protonated methane ion, CH₅, in the mass spectrum of 2-methoxyethanol.” 1965. Masters Thesis, Michigan State University. Accessed March 04, 2021. http://etd.lib.msu.edu/islandora/object/etd:13772.

MLA Handbook (7^th Edition):

Way, Kermit Rainsford. “Formation of the protonated methane ion, CH₅, in the mass spectrum of 2-methoxyethanol.” 1965. Web. 04 Mar 2021.

Vancouver:

Way KR. Formation of the protonated methane ion, CH₅, in the mass spectrum of 2-methoxyethanol. [Internet] [Masters thesis]. Michigan State University; 1965. [cited 2021 Mar 04]. Available from: http://etd.lib.msu.edu/islandora/object/etd:13772.

Council of Science Editors:

Way KR. Formation of the protonated methane ion, CH₅, in the mass spectrum of 2-methoxyethanol. [Masters Thesis]. Michigan State University; 1965. Available from: http://etd.lib.msu.edu/islandora/object/etd:13772

University of Aberdeen

14. McMahon, Sean. Mars, methane and microbes : deep biospheres and other sources of methane on Earth and Mars.

Degree: PhD, 2014, University of Aberdeen

URL: https://abdn.alma.exlibrisgroup.com/view/delivery/44ABE_INST/12152999150005941 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.629394

► This thesis reports the application of geological techniques to astrobiological questions about hydrogen-consuming, methane-producing life in planetary crusts, particularly on Earth and Mars. I report… (more)

Subjects/Keywords: 551; Methane

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APA (6^th Edition):

McMahon, S. (2014). Mars, methane and microbes : deep biospheres and other sources of methane on Earth and Mars. (Doctoral Dissertation). University of Aberdeen. Retrieved from https://abdn.alma.exlibrisgroup.com/view/delivery/44ABE_INST/12152999150005941 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.629394

Chicago Manual of Style (16^th Edition):

McMahon, Sean. “Mars, methane and microbes : deep biospheres and other sources of methane on Earth and Mars.” 2014. Doctoral Dissertation, University of Aberdeen. Accessed March 04, 2021. https://abdn.alma.exlibrisgroup.com/view/delivery/44ABE_INST/12152999150005941 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.629394.

MLA Handbook (7^th Edition):

McMahon, Sean. “Mars, methane and microbes : deep biospheres and other sources of methane on Earth and Mars.” 2014. Web. 04 Mar 2021.

Vancouver:

McMahon S. Mars, methane and microbes : deep biospheres and other sources of methane on Earth and Mars. [Internet] [Doctoral dissertation]. University of Aberdeen; 2014. [cited 2021 Mar 04]. Available from: https://abdn.alma.exlibrisgroup.com/view/delivery/44ABE_INST/12152999150005941 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.629394.

Council of Science Editors:

McMahon S. Mars, methane and microbes : deep biospheres and other sources of methane on Earth and Mars. [Doctoral Dissertation]. University of Aberdeen; 2014. Available from: https://abdn.alma.exlibrisgroup.com/view/delivery/44ABE_INST/12152999150005941 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.629394

University of Alberta

15. Huang, Guangyu. Catalytic Combustion of Lean Methane on Commercial Palladium-Based Catalysts.

Degree: MS, Department of Chemical and Materials Engineering, 2009, University of Alberta

URL: https://era.library.ualberta.ca/files/pn89d717r

► Catalytic combustion provides us an efficient approach for the utilization and mitigation of methane, the major component of natural gas as well as an important… (more)

Subjects/Keywords: Methane; Catalytic Combustion; Palladium; Methane Concentration; Water

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APA (6^th Edition):

Huang, G. (2009). Catalytic Combustion of Lean Methane on Commercial Palladium-Based Catalysts. (Masters Thesis). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/pn89d717r

Chicago Manual of Style (16^th Edition):

Huang, Guangyu. “Catalytic Combustion of Lean Methane on Commercial Palladium-Based Catalysts.” 2009. Masters Thesis, University of Alberta. Accessed March 04, 2021. https://era.library.ualberta.ca/files/pn89d717r.

MLA Handbook (7^th Edition):

Huang, Guangyu. “Catalytic Combustion of Lean Methane on Commercial Palladium-Based Catalysts.” 2009. Web. 04 Mar 2021.

Vancouver:

Huang G. Catalytic Combustion of Lean Methane on Commercial Palladium-Based Catalysts. [Internet] [Masters thesis]. University of Alberta; 2009. [cited 2021 Mar 04]. Available from: https://era.library.ualberta.ca/files/pn89d717r.

Council of Science Editors:

Huang G. Catalytic Combustion of Lean Methane on Commercial Palladium-Based Catalysts. [Masters Thesis]. University of Alberta; 2009. Available from: https://era.library.ualberta.ca/files/pn89d717r

16. Kannikar Kongwarin. Influence of scum layer on methane emission from open anaerobic pond of palm oil mill .

Degree: คณะวิศวกรรมศาสตร์ ภาควิชาวิศวกรรมโยธา, 2012, Prince of Songkla University

URL: http://kb.psu.ac.th/psukb/handle/2010/8744

Subjects/Keywords: Methane; Methane Measurement

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APA (6^th Edition):

Kongwarin, K. (2012). Influence of scum layer on methane emission from open anaerobic pond of palm oil mill . (Thesis). Prince of Songkla University. Retrieved from http://kb.psu.ac.th/psukb/handle/2010/8744

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Kongwarin, Kannikar. “Influence of scum layer on methane emission from open anaerobic pond of palm oil mill .” 2012. Thesis, Prince of Songkla University. Accessed March 04, 2021. http://kb.psu.ac.th/psukb/handle/2010/8744.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Kongwarin, Kannikar. “Influence of scum layer on methane emission from open anaerobic pond of palm oil mill .” 2012. Web. 04 Mar 2021.

Vancouver:

Kongwarin K. Influence of scum layer on methane emission from open anaerobic pond of palm oil mill . [Internet] [Thesis]. Prince of Songkla University; 2012. [cited 2021 Mar 04]. Available from: http://kb.psu.ac.th/psukb/handle/2010/8744.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Kongwarin K. Influence of scum layer on methane emission from open anaerobic pond of palm oil mill . [Thesis]. Prince of Songkla University; 2012. Available from: http://kb.psu.ac.th/psukb/handle/2010/8744

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Houston

17. Thomas, Gevargis. Evaluation of Pump and Treat Technology for Removal of Methane Contamination in a Fresh Water Aquifer.

Degree: MS, Petroleum Engineering, 2017, University of Houston

URL: http://hdl.handle.net/10657/4591

► An operating company has used salt caverns for storage of natural gas since their creation in 1971. A casing leak developed in a gas storage… (more)

Subjects/Keywords: Pump-and-treat; Methane contamination; Methane

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APA (6^th Edition):

Thomas, G. (2017). Evaluation of Pump and Treat Technology for Removal of Methane Contamination in a Fresh Water Aquifer. (Masters Thesis). University of Houston. Retrieved from http://hdl.handle.net/10657/4591

Chicago Manual of Style (16^th Edition):

Thomas, Gevargis. “Evaluation of Pump and Treat Technology for Removal of Methane Contamination in a Fresh Water Aquifer.” 2017. Masters Thesis, University of Houston. Accessed March 04, 2021. http://hdl.handle.net/10657/4591.

MLA Handbook (7^th Edition):

Thomas, Gevargis. “Evaluation of Pump and Treat Technology for Removal of Methane Contamination in a Fresh Water Aquifer.” 2017. Web. 04 Mar 2021.

Vancouver:

Thomas G. Evaluation of Pump and Treat Technology for Removal of Methane Contamination in a Fresh Water Aquifer. [Internet] [Masters thesis]. University of Houston; 2017. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/10657/4591.

Council of Science Editors:

Thomas G. Evaluation of Pump and Treat Technology for Removal of Methane Contamination in a Fresh Water Aquifer. [Masters Thesis]. University of Houston; 2017. Available from: http://hdl.handle.net/10657/4591

Texas Tech University

18. Mahendra, Sumil K. Pressure transient testing in coalbed methane reservoirs.

Degree: Petroleum Engineering, 1997, Texas Tech University

URL: http://hdl.handle.net/2346/18881

► Pressure transient testing in coalbed methane reservoirs differs significantly from well testing in conventional gas reservoirs. Coal's storage and production mechanisms are the primary cause… (more)

▼ Pressure transient testing in coalbed methane reservoirs differs significantly from well testing in conventional gas reservoirs. Coal's storage and production mechanisms are the primary cause for the disparity in the analysis for the two types of reservoirs. A modification of conventional analysis methods is required, at most times, to adequately evaluate a coal reservoir. This study characterizes a dewatered coal gas reservoir at a specific test site through evaluation of pressure responses from the coal wells in the area. Three different analysis techniques, namely, single-well test analysis, multi-well test analysis and reservoir simulation, were employed to estimate the reservoir properties for the formation at the site. Additionally, the intent of this study was to identify the well testing model representative of the pressure response from a coal reservoir. The real gas pseudopressure method was employed for single- and multiwell test analysis using PIE, a well testing software. Some multi-well test analysis was also performed using Papadopulos-Ramey method, which is specifically designed for anisotropic formations. The reservoir simulation portion of the study, for evaluation of multi-well test analysis results, was performed on ECLIPSE-200, a coalbed methane simulator. Single- and multi-well test analysis of the pressure transient tests run on the coal wells at the site suggested a homogeneous and radial reservoir with boundary effects. This conclusion was reached despite the fact that coal is a dual porosity and dual permeability reservoir. Single- and multi-well test analysis also suggested scale dependent permeability and partially sealing no-flow boundaries at the formation site. Additionally, an average geometric mean permeability was determined for the site from multi-well test analysis. Reservoir simulation gave an estimate for the directional orientation of the face and butt cleat systems, and a measure of the anisotropic permeability ratio between the face and butt cleats for the tested site. Future work needs to be done to determine the exact location of the noflow boundaries and the orientation of the face and butt cleat systems.

Subjects/Keywords: Methane; Coalbed methane

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APA (6^th Edition):

Mahendra, S. K. (1997). Pressure transient testing in coalbed methane reservoirs. (Thesis). Texas Tech University. Retrieved from http://hdl.handle.net/2346/18881

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Mahendra, Sumil K. “Pressure transient testing in coalbed methane reservoirs.” 1997. Thesis, Texas Tech University. Accessed March 04, 2021. http://hdl.handle.net/2346/18881.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Mahendra, Sumil K. “Pressure transient testing in coalbed methane reservoirs.” 1997. Web. 04 Mar 2021.

Vancouver:

Mahendra SK. Pressure transient testing in coalbed methane reservoirs. [Internet] [Thesis]. Texas Tech University; 1997. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/2346/18881.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Mahendra SK. Pressure transient testing in coalbed methane reservoirs. [Thesis]. Texas Tech University; 1997. Available from: http://hdl.handle.net/2346/18881

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Louisiana State University

19. Broemsen, Erik L. J. E. Evidence of methane cycling beneath the western margin of the Greenland Ice Sheet.

Degree: MS, 2013, Louisiana State University

URL: etd-01142014-185208 ; https://digitalcommons.lsu.edu/gradschool_theses/521

► The greenhouse gas methane mainly regulated by microbial processes. Methanogenic archaea, a major biological source of methane, are a diverse group of organisms that produce… (more)

▼ The greenhouse gas methane mainly regulated by microbial processes. Methanogenic archaea, a major biological source of methane, are a diverse group of organisms that produce methane as a metabolic byproduct. The generation of methane takes place in diverse anoxic environments using CO2 and other reduced substrates. The release of methane into oxic environments often is regulated by methanotrophic Proteobacteria and Archaea, specialized groups of bacteria that use methane as sole sources of carbon and energy. These organisms can play major roles in the regulation of methane transport into the atmosphere and make up one part of the methane cycle. Pools of are methane thought to be sequestered from interacting with the global methane cycle may exist beneath the world’s glaciers and ice sheets. These environments are cold, dark, and anoxic. Thereby these environments would be suitable for the growth and metabolism of methanogenic bacteria. Subglacial environments harbor active microbial ecosystems that potentially impact biogeochemical cycling and contribute significantly to global iron, sulfur, and carbon cycles. Recent molecular and biogeochemical evidence has suggested that subglacial environments are sources of the greenhouse gas methane. Here we present molecular and geochemical evidence of microbially derived subglacial methane being released at sites of subglacial discharge from a glacial terminus near Kangerlussuaq, Greenland. Dissolved methane in subglacial discharge was measured in samples collected during the summer of 2012 and ranged from 0.97 to 85 µM; δ13CH4 values for the methane indicated a biological origin. Duplicate samples that were not killed at time of collection showed depleted methane concentrations and heavy enrichment in δ13CH4 after four months of 4°C incubation. Molecular evidence, in the form of reverse transcribed pmoA mRNA and 16S rRNA, for active methanotrophs and recently active methanogens was found in these samples. Furthermore, a return visit to the subglacial site the following year provided additional evidence of an active methanotrophic community based on time series incubations (methane oxidation rates of 0.31 μM day-1). These data provide the first evidence suggesting that active microbial oxidation of subglacial methane is occurring at the western margin of the Greenland Ice Sheet.

Subjects/Keywords: methanotrophy; methanogenesis; methane; Subglacial; subglacial methane

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APA (6^th Edition):

Broemsen, E. L. J. E. (2013). Evidence of methane cycling beneath the western margin of the Greenland Ice Sheet. (Masters Thesis). Louisiana State University. Retrieved from etd-01142014-185208 ; https://digitalcommons.lsu.edu/gradschool_theses/521

Chicago Manual of Style (16^th Edition):

Broemsen, Erik L J E. “Evidence of methane cycling beneath the western margin of the Greenland Ice Sheet.” 2013. Masters Thesis, Louisiana State University. Accessed March 04, 2021. etd-01142014-185208 ; https://digitalcommons.lsu.edu/gradschool_theses/521.

MLA Handbook (7^th Edition):

Broemsen, Erik L J E. “Evidence of methane cycling beneath the western margin of the Greenland Ice Sheet.” 2013. Web. 04 Mar 2021.

Vancouver:

Broemsen ELJE. Evidence of methane cycling beneath the western margin of the Greenland Ice Sheet. [Internet] [Masters thesis]. Louisiana State University; 2013. [cited 2021 Mar 04]. Available from: etd-01142014-185208 ; https://digitalcommons.lsu.edu/gradschool_theses/521.

Council of Science Editors:

Broemsen ELJE. Evidence of methane cycling beneath the western margin of the Greenland Ice Sheet. [Masters Thesis]. Louisiana State University; 2013. Available from: etd-01142014-185208 ; https://digitalcommons.lsu.edu/gradschool_theses/521

University of Utah

20. Parke, Laura Grace. Experimental and theoretical studies of Hf*, Ta+, and Ta2+ reacting with methane.

Degree: MS;, Chemistry;, 2009, University of Utah

URL: http://content.lib.utah.edu/cdm/singleitem/collection/etd2/id/458/rec/460

► Guided-ion-beam tandem mass spectrometer techniques are used to study the activation of methane by the third-row transition metal ions, M = Hf, Ta+ , and… (more)

Subjects/Keywords: Methane; Metal ions

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APA (6^th Edition):

Parke, L. G. (2009). Experimental and theoretical studies of Hf*, Ta+, and Ta2+ reacting with methane. (Masters Thesis). University of Utah. Retrieved from http://content.lib.utah.edu/cdm/singleitem/collection/etd2/id/458/rec/460

Chicago Manual of Style (16^th Edition):

Parke, Laura Grace. “Experimental and theoretical studies of Hf*, Ta+, and Ta2+ reacting with methane.” 2009. Masters Thesis, University of Utah. Accessed March 04, 2021. http://content.lib.utah.edu/cdm/singleitem/collection/etd2/id/458/rec/460.

MLA Handbook (7^th Edition):

Parke, Laura Grace. “Experimental and theoretical studies of Hf*, Ta+, and Ta2+ reacting with methane.” 2009. Web. 04 Mar 2021.

Vancouver:

Parke LG. Experimental and theoretical studies of Hf*, Ta+, and Ta2+ reacting with methane. [Internet] [Masters thesis]. University of Utah; 2009. [cited 2021 Mar 04]. Available from: http://content.lib.utah.edu/cdm/singleitem/collection/etd2/id/458/rec/460.

Council of Science Editors:

Parke LG. Experimental and theoretical studies of Hf*, Ta+, and Ta2+ reacting with methane. [Masters Thesis]. University of Utah; 2009. Available from: http://content.lib.utah.edu/cdm/singleitem/collection/etd2/id/458/rec/460

University of Rochester

21. Chan, Eric W. Investigations of biogeochemical and stable isotope kinetics of aerobic methane oxidation in seawater.

Degree: PhD, 2018, University of Rochester

URL: http://hdl.handle.net/1802/33321

► The largest global reservoir of CH4 that interacts with the ocean occurs in and below the seafloor. Investigations at locations of CH4 bubble emission from… (more)

▼ The largest global reservoir of CH4 that interacts with the ocean occurs in and below the seafloor. Investigations at locations of CH4 bubble emission from the seafloor have led to hypotheses surrounding whether the emission of methane from this massive reservoir will change with changing climate. Yet, aerobic methane oxidation in seawater may limit the atmospheric expression of seafloor-released methane. Here we examine aerobic methane oxidation (AMO) kinetics with three ultimate goals of determining: (1) the amounts of reactants required to remove a quantity of methane from seawater, (2) the fundamental isotopic fractionation parameters, and (3) how these properties may be spatially different. As methane is oxidized microbially, 12CH4 is used at a slightly faster rate than 13CH4 thus causing fractionation. The magnitude of the isotopic fractionation is unique for this microbial oxidation process, so these systematic changes in isotopic abundances have been used to quantify the extent and rate of oxidation [e.g. Leonte et al., 2017]. To investigate the chemical and isotopic kinetics of AMO in seawater, a unique mesocosm incubation system (MIS) was developed with a Dissolved Gas Analyzer System (DGAS) to monitor the chemical and isotopic changes in real-time. This work examined AMO at three different environments, Sleeping Dragon seep field, Mississippi Canyon 118 (MC 118) (Lat. = 28° 51.129’N, Long. -88° 29.51’W) as well as inside the Hudson Canyon (HC), US Atlantic Margin at the upper boundary of the methane clathrate stability zone (Lat. = 39° 32.705’N, Long. = 72° 24.259’W) and outside the HC, not directly influenced by the methane seepage (Lat. = 39° 17.236’N, Long. = 72° 12.080’W). These results show that in both environments, methane was consumed aggressively after an initial lag, but the start of aggressive consumption varied based on location. The biogeochemical data can be used to determine a “Redfield ratio” for AMO. The ratio for MC118 was (123 ± 73) : (182 ± 111) : (15 ± 11) : (1) (DO:CH4:N:P), which was found to be statistically consistent between the different environments. This ratio can be used to estimate the total capacity for AMO following a methane release. Isotopic fractionation factors were determined to change with different chemical conditions but did not display changes in isotopic fractionation with the stage of microbial growth.

Subjects/Keywords: Aerobic methane oxidation; Dissolved methane; Methane kinetics; Methane seep; Methanotroph; Stable isotope fractionation

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APA (6^th Edition):

Chan, E. W. (2018). Investigations of biogeochemical and stable isotope kinetics of aerobic methane oxidation in seawater. (Doctoral Dissertation). University of Rochester. Retrieved from http://hdl.handle.net/1802/33321

Chicago Manual of Style (16^th Edition):

Chan, Eric W. “Investigations of biogeochemical and stable isotope kinetics of aerobic methane oxidation in seawater.” 2018. Doctoral Dissertation, University of Rochester. Accessed March 04, 2021. http://hdl.handle.net/1802/33321.

MLA Handbook (7^th Edition):

Chan, Eric W. “Investigations of biogeochemical and stable isotope kinetics of aerobic methane oxidation in seawater.” 2018. Web. 04 Mar 2021.

Vancouver:

Chan EW. Investigations of biogeochemical and stable isotope kinetics of aerobic methane oxidation in seawater. [Internet] [Doctoral dissertation]. University of Rochester; 2018. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/1802/33321.

Council of Science Editors:

Chan EW. Investigations of biogeochemical and stable isotope kinetics of aerobic methane oxidation in seawater. [Doctoral Dissertation]. University of Rochester; 2018. Available from: http://hdl.handle.net/1802/33321

University of Alberta

22. Magnowski, Nicholas Brooks Kenneth. Adsorptive Separation of C2H6 and H2S from CH4.

Degree: MS, Department of Chemical and Materials Engineering, 2014, University of Alberta

URL: https://era.library.ualberta.ca/files/cc08hg25k

► The natural gas industry recognises that the need for removal of CH4 from C2H6 feedstock C2H4 production and utilization. CH4 being a contaminant in the… (more)

Subjects/Keywords: Methane; Ethane; Adsorption

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APA (6^th Edition):

Magnowski, N. B. K. (2014). Adsorptive Separation of C2H6 and H2S from CH4. (Masters Thesis). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/cc08hg25k

Chicago Manual of Style (16^th Edition):

Magnowski, Nicholas Brooks Kenneth. “Adsorptive Separation of C2H6 and H2S from CH4.” 2014. Masters Thesis, University of Alberta. Accessed March 04, 2021. https://era.library.ualberta.ca/files/cc08hg25k.

MLA Handbook (7^th Edition):

Magnowski, Nicholas Brooks Kenneth. “Adsorptive Separation of C2H6 and H2S from CH4.” 2014. Web. 04 Mar 2021.

Vancouver:

Magnowski NBK. Adsorptive Separation of C2H6 and H2S from CH4. [Internet] [Masters thesis]. University of Alberta; 2014. [cited 2021 Mar 04]. Available from: https://era.library.ualberta.ca/files/cc08hg25k.

Council of Science Editors:

Magnowski NBK. Adsorptive Separation of C2H6 and H2S from CH4. [Masters Thesis]. University of Alberta; 2014. Available from: https://era.library.ualberta.ca/files/cc08hg25k

University of Alberta

23. Jodeiri Naghashkar, Naeimeh. Investigating the catalyitc combustion of methane and BTEX in a counter-diffusive radiant heater.

Degree: PhD, Department of Chemical and Materials Engineering, 2011, University of Alberta

URL: https://era.library.ualberta.ca/files/vh53ww850

► This research was aimed at investigating a counter-diffusive catalytic reactor for mitigation of methane and BTEX emissions from the natural gas dehydration process. A commercial… (more)

▼ This research was aimed at investigating a counter-diffusive catalytic reactor for mitigation of methane and BTEX emissions from the natural gas dehydration process. A commercial radiant heater unit was used in the experiments and the effect of methane flow rate on its conversion was studied. Methane conversion decreased with increasing methane feed rate. It was found that the external diffusion of oxygen through the boundary layer was the limiting factor in the system. Complete methane conversion was achieved when the oxygen diffusion limitation was overcome by inducing convective air flux in the boundary layer in front of the catalyst pad. To simulate natural gas dehydration emissions, which contain excess amount of water, the effect of addition of liquid water and water vapor on methane combustion was also studied. Small volumes of liquid water did not affect the methane combustion, however, at 2 g/min liquid water, which is comparable to the amount of water produced during the reaction, combustion was inhibited. Added water vapor did not show any influence on combustion efficiency. The presence of pentane and toluene, representing the non-aromatic hydrocarbons and BTEX substances in the emissions, inhibited methane conversion due to the competition for oxygen since pentane and toluene are easier to oxidize compared to methane. Two-dimensional modeling of the radiant heater system was conducted using the COMSOL Multiphysics software package. Comparing the model data for methane conversion with experimental results revealed similar decreasing trend in conversion with increasing the methane flow rate; however, the model under-predicted the conversion. Increasing the mass transfer coefficient, resulted in improved methane conversion, confirming the dominance of mass diffusion limitation in the system. In fact, the real mass transfer coefficient was 1.5-2 times higher than the values originally used in the model. Changing the kinetic parameters did not significantly improve the conversion leading to the conclusion that the catalytic radiant heater system is not kinetically controlled. Developing the three-dimensional model of the system in Fluent revealed that the fuel distribution in the system is not a significant factor, in agreement with experimental observation.

Subjects/Keywords: catalytic; combustion; methane

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APA (6^th Edition):

Jodeiri Naghashkar, N. (2011). Investigating the catalyitc combustion of methane and BTEX in a counter-diffusive radiant heater. (Doctoral Dissertation). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/vh53ww850

Chicago Manual of Style (16^th Edition):

Jodeiri Naghashkar, Naeimeh. “Investigating the catalyitc combustion of methane and BTEX in a counter-diffusive radiant heater.” 2011. Doctoral Dissertation, University of Alberta. Accessed March 04, 2021. https://era.library.ualberta.ca/files/vh53ww850.

MLA Handbook (7^th Edition):

Jodeiri Naghashkar, Naeimeh. “Investigating the catalyitc combustion of methane and BTEX in a counter-diffusive radiant heater.” 2011. Web. 04 Mar 2021.

Vancouver:

Jodeiri Naghashkar N. Investigating the catalyitc combustion of methane and BTEX in a counter-diffusive radiant heater. [Internet] [Doctoral dissertation]. University of Alberta; 2011. [cited 2021 Mar 04]. Available from: https://era.library.ualberta.ca/files/vh53ww850.

Council of Science Editors:

Jodeiri Naghashkar N. Investigating the catalyitc combustion of methane and BTEX in a counter-diffusive radiant heater. [Doctoral Dissertation]. University of Alberta; 2011. Available from: https://era.library.ualberta.ca/files/vh53ww850

University of Otago

24. Ehimen, Ehiaze Augustine. An Investigation on the Co-production of Biodiesel and Methane from Microalgae .

Degree: 2011, University of Otago

URL: http://hdl.handle.net/10523/647

► The use of microalgae biomass for the production of biodiesel has been increasingly investigated mainly because arable land is not required for cultivating this biofuel… (more)

▼ The use of microalgae biomass for the production of biodiesel has been increasingly investigated mainly because arable land is not required for cultivating this biofuel feedstock. However the large scale production of microalgae biodiesel under present day scenarios is currently considered to be infeasible. This is mainly due to the higher energy and economic costs for microalgae biodiesel production compared with the use of common terrestrial biomass oils (i.e. palm, rapeseeds and soybean oil). This thesis investigates the production of biodiesel from microalgae biomass using the in-situ transesterification process and the recovery of additional energy from the post transesterified microalgae residues, as a tool for improving the energetics of biodiesel production from this feedstock. The thesis aims to provide preliminary experimental information on biodiesel and subsequently methane production from microalgae which was not previously available in the literature. In addition, a simple renewability assessment of the various in-situ and conventional transesterification methods examined in this study was carried out. The laboratory experiments examined the influence of important reaction parameters (reaction time, process temperature, reactant concentrations, agitation and the biomass moisture content) on biodiesel production from microalgae using the in-situ transesterification method. The results showed a 5% increase in the biodiesel yields with the use of the in-situ method compared with the conventional transesterification process under similar reaction conditions. Furthermore, results obtained from the in-situ transesterification experiments indicated that continuous reactor stirring, increasing the reacting alcohol to oil molar ratios (≥ 315:1) and increasing the process temperature (≥60°C) led to improved fatty acid methyl ester (FAME) conversions. Total inhibition of in-situ microalgae biodiesel conversion was observed with biomass water content greater than 115% w/w (on the basis of oil weight). However, the optimal excess reacting alcohol requirement of the in-situ process was identified as a factor which could potentially limit any energy gains obtainable with this method, due to the energy demands to facilitate the recovery of the excess alcohol quantities i.e. via distillation methods. To reduce the process alcohol requirement, modifications to the original in-situ transesterification scheme (via the use of low frequency ultrasound and the integration of co-solvents) were applied. Using similar reaction conditions, the use of ultrasound agitation for the in-situ process was shown to improve the biodiesel yields with reduced molar alcohol to oil ratios (105:1) and reaction times. Regarding energy recovery from the microalgae residues, the use of the anaerobic digestion process for methane production from the residues post transesterification was examined. The results obtained from the batch anaerobic digestion tests demonstrate that the type of lipid extraction solvent utilised in the conventional… Advisors/Committee Members: Sun, Zhifa (advisor).

Subjects/Keywords: Biodiesel; Microalgae; Methane

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APA (6^th Edition):

Ehimen, E. A. (2011). An Investigation on the Co-production of Biodiesel and Methane from Microalgae . (Doctoral Dissertation). University of Otago. Retrieved from http://hdl.handle.net/10523/647

Chicago Manual of Style (16^th Edition):

Ehimen, Ehiaze Augustine. “An Investigation on the Co-production of Biodiesel and Methane from Microalgae .” 2011. Doctoral Dissertation, University of Otago. Accessed March 04, 2021. http://hdl.handle.net/10523/647.

MLA Handbook (7^th Edition):

Ehimen, Ehiaze Augustine. “An Investigation on the Co-production of Biodiesel and Methane from Microalgae .” 2011. Web. 04 Mar 2021.

Vancouver:

Ehimen EA. An Investigation on the Co-production of Biodiesel and Methane from Microalgae . [Internet] [Doctoral dissertation]. University of Otago; 2011. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/10523/647.

Council of Science Editors:

Ehimen EA. An Investigation on the Co-production of Biodiesel and Methane from Microalgae . [Doctoral Dissertation]. University of Otago; 2011. Available from: http://hdl.handle.net/10523/647

Colorado State University

25. Judd, Craig R. Impact of methanotroph ecology on upland methane biogeochemistry in grassland soils.

Degree: MS(M.S.), Ecology, 2011, Colorado State University

URL: http://hdl.handle.net/10217/47280

► Molecular assays of soil environments reveal tremendous microbial diversity, but it remains unclear how this diversity might be mechanistically linked to the ecology of the… (more)

Subjects/Keywords: grassland; methanotroph; methane

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APA (6^th Edition):

Judd, C. R. (2011). Impact of methanotroph ecology on upland methane biogeochemistry in grassland soils. (Masters Thesis). Colorado State University. Retrieved from http://hdl.handle.net/10217/47280

Chicago Manual of Style (16^th Edition):

Judd, Craig R. “Impact of methanotroph ecology on upland methane biogeochemistry in grassland soils.” 2011. Masters Thesis, Colorado State University. Accessed March 04, 2021. http://hdl.handle.net/10217/47280.

MLA Handbook (7^th Edition):

Judd, Craig R. “Impact of methanotroph ecology on upland methane biogeochemistry in grassland soils.” 2011. Web. 04 Mar 2021.

Vancouver:

Judd CR. Impact of methanotroph ecology on upland methane biogeochemistry in grassland soils. [Internet] [Masters thesis]. Colorado State University; 2011. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/10217/47280.

Council of Science Editors:

Judd CR. Impact of methanotroph ecology on upland methane biogeochemistry in grassland soils. [Masters Thesis]. Colorado State University; 2011. Available from: http://hdl.handle.net/10217/47280

Montana State University

26. Spotts, Terra Marie. Methane flux from recently exposed subglacial sediments, Robertson Glacier, Canada.

Degree: MS, College of Letters & Science, 2014, Montana State University

URL: https://scholarworks.montana.edu/xmlui/handle/1/9139

► Methane is over 20 times more effective than CO 2 as a greenhouse gas. Thus, its atmospheric concentration and the processes controlling it are important… (more)

▼ Methane is over 20 times more effective than CO 2 as a greenhouse gas. Thus, its atmospheric concentration and the processes controlling it are important components of the global climate system. Recent research has shown methanogenesis in subglacial sediments. However, the net contribution from subglacial systems to the global methane budget is poorly understood due to a dearth of empirical data. Using measurements via the static chamber method, the flux of methane from recently exposed subglacial sediments at Robertson Glacier, Canadian Rockies was quantified. Methane concentrations were measured from surface gas flux chambers in transects both parallel and perpendicular to the glacier terminus. Over 300 measurements were made during the 2012 melt season (July to September) and used to determine both spatial and temporal variability in the gas fluxes. The chamber farthest from the glacier terminus, approximately 50 m down valley, had an average flux close to zero whereas the chambers nearest the terminus had the highest average fluxes. The average methane efflux from the sediment surface to atmosphere was 0.22 micromoles m -2 d -1. The highest methane efflux during the season, 11.0 micromoles m -2 d -1, was measured in close proximity to the glacier terminus. Shallow sediment cores were collected adjacent to the static chambers and vertical gas concentration profiles were measured from the cores. Within the profiles, methane concentrations were greater than atmospheric concentrations at all depths. Additionally, CO 2, CO and H 2 gas concentrations were analyzed in the cores to evaluate potential microbial metabolic pathways of methane production. Previous studies on methane fluxes from glacial sediments in Greenland and the Swiss Alps used single time point flux measurements during a melt season from multiple locations. This study concludes that such point measurements are unlikely representative for determining a net seasonal flux as they do not consider temporal variability. There was a two order of magnitude difference between the annual source contribution of methane based on the average melt season flux and the highest measured surface flux. This indicates that single sampling periods may significantly over or underestimate the net seasonal flux of methane from recently exposed glacial sediments to the atmosphere. Advisors/Committee Members: Chairperson, Graduate Committee: Mark L. Skidmore (advisor).

Subjects/Keywords: Methane.; Glaciers.; Microbiology.

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Spotts, T. M. (2014). Methane flux from recently exposed subglacial sediments, Robertson Glacier, Canada. (Masters Thesis). Montana State University. Retrieved from https://scholarworks.montana.edu/xmlui/handle/1/9139

Chicago Manual of Style (16^th Edition):

Spotts, Terra Marie. “Methane flux from recently exposed subglacial sediments, Robertson Glacier, Canada.” 2014. Masters Thesis, Montana State University. Accessed March 04, 2021. https://scholarworks.montana.edu/xmlui/handle/1/9139.

MLA Handbook (7^th Edition):

Spotts, Terra Marie. “Methane flux from recently exposed subglacial sediments, Robertson Glacier, Canada.” 2014. Web. 04 Mar 2021.

Vancouver:

Spotts TM. Methane flux from recently exposed subglacial sediments, Robertson Glacier, Canada. [Internet] [Masters thesis]. Montana State University; 2014. [cited 2021 Mar 04]. Available from: https://scholarworks.montana.edu/xmlui/handle/1/9139.

Council of Science Editors:

Spotts TM. Methane flux from recently exposed subglacial sediments, Robertson Glacier, Canada. [Masters Thesis]. Montana State University; 2014. Available from: https://scholarworks.montana.edu/xmlui/handle/1/9139

Georgia Tech

27. Dou, Zeou. Bioelectrochemically-assisted anaerobic digestion for biogas upgrading and enhanced methane production.

Degree: MS, Civil and Environmental Engineering, 2017, Georgia Tech

URL: http://hdl.handle.net/1853/60649

► Bioelectrochemically assisted anaerobic digestion (BES-AD) is an emerging technology capable of increasing CH4 production through biogas upgrading by converting carbon dioxide (CO2) to CH4. The… (more)

▼ Bioelectrochemically assisted anaerobic digestion (BES-AD) is an emerging technology capable of increasing CH4 production through biogas upgrading by converting carbon dioxide (CO2) to CH4. The objective of this research was to enhance CH4 production from anaerobic digestion by integration with a BES. Electrodes made of carbon felt were used to promote biofilm formation and microbial interspecies interactions. A conventional anaerobic digester (R1), an anaerobic digester with two electrodes (R2, open circuit control), and a BES-AD integrated system (R3) with two electrodes connected to a power supply were developed and monitored. Biomass retention on the carbon felt electrodes is beneficial to anaerobic digestion producing CH4, as shown by a comparison between the performance of R1 and R2, maintained under different operational conditions. Biofilm formation facilitates the acclimation of mesophilic mixed methanogenic cultures at room temperature and shortens the lag phase. Along with the development of the biofilm attached on the electrodes, the initial soluble COD consumption and CH4 production rate were significantly higher in R2 than in R1. Biogas recirculation improves CO2 dissolution and transport, which results in biogas upgrading by converting CO2 to CH4. In contrast to suspended biomass anaerobic digesters, biofilm-bearing anaerobic digesters can withstand shock, high organic loadings without experiencing accumulation of VFAs leading to acidification. The level and timing for voltage application are critical for the successful start-up and operation of a BES-AD integrated bioreactor. Water electrolysis and CV tests indicated that 2.0 V was the optimal voltage for the reactors with titanium anode collector and stainless steel cathode collector used in this study. Based on the performance of the two integrated reactors, applying voltage after the development of a robust biofilm on the electrodes under open circuit conditions and the reactor has reached a stable performance, results in a BES-AD integrated system which achieves a higher CH4 production compared to applying the voltage from the beginning of biofilm development. Biogas upgrading and enhanced CH4 production were achieved in a BES-AD reactor benefited from water electrolysis and electromethanogenesis. Advisors/Committee Members: Pavlostathis, Spyros G. (advisor), Huang, Ching-Hua (committee member), Yiacoumi, Sotira (committee member).

Subjects/Keywords: Biogas upgrading; Methane

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APA (6^th Edition):

Dou, Z. (2017). Bioelectrochemically-assisted anaerobic digestion for biogas upgrading and enhanced methane production. (Masters Thesis). Georgia Tech. Retrieved from http://hdl.handle.net/1853/60649

Chicago Manual of Style (16^th Edition):

Dou, Zeou. “Bioelectrochemically-assisted anaerobic digestion for biogas upgrading and enhanced methane production.” 2017. Masters Thesis, Georgia Tech. Accessed March 04, 2021. http://hdl.handle.net/1853/60649.

MLA Handbook (7^th Edition):

Dou, Zeou. “Bioelectrochemically-assisted anaerobic digestion for biogas upgrading and enhanced methane production.” 2017. Web. 04 Mar 2021.

Vancouver:

Dou Z. Bioelectrochemically-assisted anaerobic digestion for biogas upgrading and enhanced methane production. [Internet] [Masters thesis]. Georgia Tech; 2017. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/1853/60649.

Council of Science Editors:

Dou Z. Bioelectrochemically-assisted anaerobic digestion for biogas upgrading and enhanced methane production. [Masters Thesis]. Georgia Tech; 2017. Available from: http://hdl.handle.net/1853/60649

28. MacLeod, Douglas. Characterization of a Silty Methane-Hydrate Reservoir in the Gulf of Mexico: Analysis of Full Sediment Grain-Size Distributions.

Degree: MS, 2020, University of New Hampshire

URL: https://scholars.unh.edu/thesis/1387

► Submarine methane-hydrate reservoirs represent an ephemeral reservoir of carbon on Earth that can contain economically important concentrations of methane. Turbidite sands in deepwater marine… (more)

▼ Submarine methane-hydrate reservoirs represent an ephemeral reservoir of carbon on Earth that can contain economically important concentrations of methane. Turbidite sands in deepwater marine environments have been targeted by recent research because they contain sufficient primary porosity to host high saturations of methane hydrate within the temperature and pressure window of the gas-hydrate stability zone. Silty turbidite levee deposits, however, also contain sufficient primary porosity to host high saturations of methane hydrate and they may contain more organic carbon than sand to fuel methanogenesis. In this research I used laser diffractometry to measure the full grain-size distribution of 46 bulk and 51 organic-carbon-free methane-hydrate reservoir sediment samples collected with pressure cores from a turbidite channel-levee system in the Gulf of Mexico during the 2017 UT-GOM2-1 Hydrate Pressure Coring Expedition. My results characterize the reservoir into three silt-dominated lithofacies and show that each lithofacies is characteristic of a specific sub-environment of deposition (i.e., turbidity current, waning turbidity current, and inter-event sedimentation) within the channel levee system. The results also show that organic carbon in this reservoir resides predominantly in the fine sediment fraction of all three lithofacies. The implications of these results are that silt-dominated reservoirs may accumulate methane and methane hydrate via both short-range and long-range methane migration pathways. In the Gulf of Mexico setting examined here, deformation associated with salt diapirism promotes long-range migration pathways via faults, fractures, and dipping stratigraphic horizons that may help to explain the extremely high gas-hydrate saturations (up to 93% of pore volume) recovered in these pressure cores. The results presented in this research, coupled with recovered gas hydrate in the pressure cores suggests that silt-dominated channel levee environments may accumulate a significant quantity of methane hydrate through time and have important implications for the distribution of methane hydrate in marine sediments. Advisors/Committee Members: Joel E Johnson, David Divins, Jo Laird.

Subjects/Keywords: hydrate; methane; turbidite

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APA (6^th Edition):

MacLeod, D. (2020). Characterization of a Silty Methane-Hydrate Reservoir in the Gulf of Mexico: Analysis of Full Sediment Grain-Size Distributions. (Thesis). University of New Hampshire. Retrieved from https://scholars.unh.edu/thesis/1387

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

MacLeod, Douglas. “Characterization of a Silty Methane-Hydrate Reservoir in the Gulf of Mexico: Analysis of Full Sediment Grain-Size Distributions.” 2020. Thesis, University of New Hampshire. Accessed March 04, 2021. https://scholars.unh.edu/thesis/1387.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

MacLeod, Douglas. “Characterization of a Silty Methane-Hydrate Reservoir in the Gulf of Mexico: Analysis of Full Sediment Grain-Size Distributions.” 2020. Web. 04 Mar 2021.

Vancouver:

MacLeod D. Characterization of a Silty Methane-Hydrate Reservoir in the Gulf of Mexico: Analysis of Full Sediment Grain-Size Distributions. [Internet] [Thesis]. University of New Hampshire; 2020. [cited 2021 Mar 04]. Available from: https://scholars.unh.edu/thesis/1387.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

MacLeod D. Characterization of a Silty Methane-Hydrate Reservoir in the Gulf of Mexico: Analysis of Full Sediment Grain-Size Distributions. [Thesis]. University of New Hampshire; 2020. Available from: https://scholars.unh.edu/thesis/1387

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Colorado State University

29. Vaughn, Timothy L. Modeling methane emissions from US natural gas operations: national gathering station emission factor development and facility/regional-scale top-down to bottom-up reconciliations.

Degree: PhD, Mechanical Engineering, 2017, Colorado State University

URL: http://hdl.handle.net/10217/184042

► United States natural gas dry production increased by 47% between 2005 and 2015 due to the widespread use of horizontal drilling and hydraulic fracturing to… (more)

▼ United States natural gas dry production increased by 47% between 2005 and 2015 due to the widespread use of horizontal drilling and hydraulic fracturing to extract gas from shale and other tight formations. Natural gas production and consumption is projected to continue to increase for the foreseeable future. In 2016, the natural gas supply chain delivered 29% of the energy used in the U.S., and natural gas surpassed coal as the leading electricity generating source for the first time in U.S. history. When combusted, natural gas produces less CO2 per unit energy released compared to coal or petroleum. However, uncombusted methane (the primary component of natural gas) has a global warming potential 30 times higher than CO2 on a 100 year time horizon (including oxidation to CO2, but excluding climate-carbon feedbacks). Therefore, the net greenhouse gas impacts resulting from displacement of coal and petroleum by natural gas depend on the emission rate of uncombusted natural gas. Short term climate benefits resulting from coal substitution, for example, are lost if the net rate of methane (CH4) emission from the natural gas supply chain exceeds 3—4% . Three studies were conducted to quantify CH4 emissions from the natural gas industry. In particular, these studies focused on quantifying emissions from the gathering and processing sector and reconciling emissions estimates developed using top-down (tracer flux and aircraft) vs. bottom-up (on-site component-level) measurement approaches. In the first study, facility-level CH4 emissions measurements were made at 114 natural gas gathering facilities and 16 processing plants in 13 U.S. states during a 20-week field campaign conducted from October 2013 through April 2014. Measurement results were combined with facility counts obtained from state air permit databases and national inventories in a Monte Carlo simulation to estimate CH4 emissions from U.S. natural gas gathering and processing operations. Annual CH4 emissions from normal operations at gathering facilities totaled 1699 Gg (95% CI=1539—1863 Gg), while normal operations at processing plants totaled 505 Gg (95% CI=459—548 Gg). CH4 emissions from abnormal operations at gathering facilities were estimated in a separate Monte Carlo simulation based on field observations and a sub-set of field measurements. These emissions totaled 169 Gg (+426%/-96%). In the second study, coordinated dual-tracer, aircraft-based, and direct component-level measurements were made at midstream natural gas gathering and boosting stations in the Fayetteville shale in Arkansas, USA. On-site component-level measurements were combined with engineering estimates to generate comprehensive facility-level CH4 emission rate estimates ("study on-site estimates (SOE)") comparable to tracer and aircraft measurements. Concurrent measurements at 14 normally-operating facilities showed a strong correlation between tracer and SOE, but indicated that tracer measurements estimated lower emissions (regression of tracer to SOE=0.91 (95% CI=0.83—0.99,… Advisors/Committee Members: Marchese, Anthony J. (advisor), Yalin, Azer P. (advisor), Olsen, Daniel B. (committee member), Opsomer, Jean D. (committee member).

Subjects/Keywords: modeling methane emissions

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APA (6^th Edition):

Vaughn, T. L. (2017). Modeling methane emissions from US natural gas operations: national gathering station emission factor development and facility/regional-scale top-down to bottom-up reconciliations. (Doctoral Dissertation). Colorado State University. Retrieved from http://hdl.handle.net/10217/184042

Chicago Manual of Style (16^th Edition):

Vaughn, Timothy L. “Modeling methane emissions from US natural gas operations: national gathering station emission factor development and facility/regional-scale top-down to bottom-up reconciliations.” 2017. Doctoral Dissertation, Colorado State University. Accessed March 04, 2021. http://hdl.handle.net/10217/184042.

MLA Handbook (7^th Edition):

Vaughn, Timothy L. “Modeling methane emissions from US natural gas operations: national gathering station emission factor development and facility/regional-scale top-down to bottom-up reconciliations.” 2017. Web. 04 Mar 2021.

Vancouver:

Vaughn TL. Modeling methane emissions from US natural gas operations: national gathering station emission factor development and facility/regional-scale top-down to bottom-up reconciliations. [Internet] [Doctoral dissertation]. Colorado State University; 2017. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/10217/184042.

Council of Science Editors:

Vaughn TL. Modeling methane emissions from US natural gas operations: national gathering station emission factor development and facility/regional-scale top-down to bottom-up reconciliations. [Doctoral Dissertation]. Colorado State University; 2017. Available from: http://hdl.handle.net/10217/184042

University of Alberta

30. Miazga-Rodriguez, Misha D. Dynamics of bacterial communities in a pilot scale methane biofilter.

Degree: MS, Department of Biological Sciences, 2014, University of Alberta

URL: https://era.library.ualberta.ca/files/ng451h74s

► Methane is the second most important greenhouse gas after carbon dioxide with a global warming potential over 100 years 25 times that of CO2. Today,… (more)

Subjects/Keywords: methane; microbial ecology; microbiology; methane biofilter; methane oxidizing bacteria; methanotroph; biofilter

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APA (6^th Edition):

Miazga-Rodriguez, M. D. (2014). Dynamics of bacterial communities in a pilot scale methane biofilter. (Masters Thesis). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/ng451h74s

Chicago Manual of Style (16^th Edition):

Miazga-Rodriguez, Misha D. “Dynamics of bacterial communities in a pilot scale methane biofilter.” 2014. Masters Thesis, University of Alberta. Accessed March 04, 2021. https://era.library.ualberta.ca/files/ng451h74s.

MLA Handbook (7^th Edition):

Miazga-Rodriguez, Misha D. “Dynamics of bacterial communities in a pilot scale methane biofilter.” 2014. Web. 04 Mar 2021.

Vancouver:

Miazga-Rodriguez MD. Dynamics of bacterial communities in a pilot scale methane biofilter. [Internet] [Masters thesis]. University of Alberta; 2014. [cited 2021 Mar 04]. Available from: https://era.library.ualberta.ca/files/ng451h74s.

Council of Science Editors:

Miazga-Rodriguez MD. Dynamics of bacterial communities in a pilot scale methane biofilter. [Masters Thesis]. University of Alberta; 2014. Available from: https://era.library.ualberta.ca/files/ng451h74s

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