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You searched for subject:(Lubricant Neutralization). One record found.

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Tulane University

1. Duan, Yufei. Novel uses of capillary video-microscopy.

Degree: 2016, Tulane University

The objective of this research is to study the surface/interfacial phenomena via video-microscopic observation and quantification inside a micro-channel or microcapillary, which can mimic the operating conditions of practical problems, such as ink-jet, lubricant oil neutralization and enhanced oil recovery. In the second chapter, a micropipette-in-microcapillary method is described for the surface tension measurement at high temperatures, which mimics the dimension and working environment of ink-jet print head. Temperature control within the confined space of a capillary was achieved by coating the outer surface of the housing microcapillary with an electrically conductive, transparent, tin-doped indium oxide (ITO) thin film as a heating jacket. The precision of this technique was discussed according to the comparisons of our results with published reference data for water, n-hexadecane, and n-decane at both room and elevated temperatures. Traditionally, the neutralization of sulfuric acid by engine oils has been the major focus, however, due to the introduce of biofuel or ethanol the acetic acid has become an important concern. In the third chapter, based on micropipette-in-square-channel video-microscopy setup, the neutralization reaction mechanism and reaction kinetics of acetic acid by fully formulated lubricant oil is discussed. It was found that the neutralization exists simultaneously on the oil-acid-interface and bulk-oil phase during the droplet shrinkage. Besides, FTIR and NMR analysis show the neutralization of acetic acid as an instantaneous process, and almost all of the dissolved acetic acid in the bulk is eventually neutralized. Due to the minor role of acetic acid dissolution compared to the interfacial reaction, an interface-reaction-rate-controlled kinetic mechanism is proposed as approximation to describe the neutralization process at different conditions. When glacial and diluted acetic acid droplets were neutralized in fully formulated lubricant oil, the experimentally measured shrinking radius agreed very well with the mathematical model. According to Arrhenius equation, the activation energy of neutralization reaction was determined to be constant and its range (Ea>21 kJ/mol) further validated the assumption of interface-controlled reaction kinetics. In the final chapter, an oil-soluble surfactant prepared by Eni S.p.A. was studied to enhance crude oil mobilization in cryolite-packed miniature bed, which provided a transparent porous media at the microscopic level. When the porous media was imbued with crude oil, the presence of the surfactant in the oil phase was able to improve the mobilization performance of crude oil by flushing. In order to deliver the oil-soluble surfactant and apply it to the removal of crude from porous media, an SDS solution was used to solubilize the surfactant, and the formation of SDS/Eni-Surfactant micellar solution was confirmed by Cryo-SEM images. Using the prepared micellar solutions in oil-removal tests on the packed bed, a very high effectiveness was… Advisors/Committee Members: (author), Papadopoulos, Kyriakos (Thesis advisor), (Thesis advisor), School of Science & Engineering Chemical and Biomolecular Engineering (Degree granting institution), NULL (Degree granting institution).

Subjects/Keywords: Video-microscopy; Lubricant Neutralization; Enhanced Oil Recovery

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

APA (6th Edition):

Duan, Y. (2016). Novel uses of capillary video-microscopy. (Thesis). Tulane University. Retrieved from https://digitallibrary.tulane.edu/islandora/object/tulane:71455

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

Chicago Manual of Style (16th Edition):

Duan, Yufei. “Novel uses of capillary video-microscopy.” 2016. Thesis, Tulane University. Accessed December 14, 2019. https://digitallibrary.tulane.edu/islandora/object/tulane:71455.

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

MLA Handbook (7th Edition):

Duan, Yufei. “Novel uses of capillary video-microscopy.” 2016. Web. 14 Dec 2019.

Vancouver:

Duan Y. Novel uses of capillary video-microscopy. [Internet] [Thesis]. Tulane University; 2016. [cited 2019 Dec 14]. Available from: https://digitallibrary.tulane.edu/islandora/object/tulane:71455.

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

Council of Science Editors:

Duan Y. Novel uses of capillary video-microscopy. [Thesis]. Tulane University; 2016. Available from: https://digitallibrary.tulane.edu/islandora/object/tulane:71455

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

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