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NSYSU

1. Yang, Jhih-Jhe. Vertical Distribution and Seasonal Variation of Volatile Organic Compounds in the Ambient Atmosphere of a Petrochemical Industrial Complex.

Degree: Master, Environmental Engineering, 2011, NSYSU

The emission of volatile organic compounds (VOCs) and odors from petrochemical industrial complex, including China Petroleum company (CPC),Renwu and Dazher petrochemical industrial parks, causes poor air quality of northern Kaohsiung. The removal efficiencies of elevated stacks and flares might play important roles on ambient air quality in metro Kaohsiung. Consequently, this study applied a tethered balloon technology to measure the vertical profile of VOCs, and ascertained their three dimensional dispersion in the atmosphere. The vertical profile of VOCs in ambient atmosphere surrounding the petrochemical industrial complex was measured during the intensive sampling periods (September 17-18th and December 20-21st, 2009 and April 8-9th and July 7-8th, 2010). Moreover, this study was designed to sample and analyze VOCs emitted from elevated stacks and flares, and estimate their emission factors. Finally, the source identification and ozone formation were further determined by principal component analysis (PCA) and ozone formation potential (OFP). This study found that some regions had relatively poorer air quality than other regions surrounding the petrochemical industrial complex. Most sampling sites with poor air quality were located at the downwind region of the petrochemical industrial complex, particularly with the prevailing winds blown from the northwest. Moreover, stratification phenomena were frequently observed at most sampling sites, indicating that high-altitude VOCs pollution should be considered for ambient air quality. This study revealed that the indicators of VOCs in northern Kaohsiung were toluene, C2 (ethylene+acetylene+ethane), and acetone. Vertical sampling of VOCs showed that the species of VOCs at the ground and high altitude were different, suggesting that ambient air quality at high altitude might be affected by the emission of VOCs from elevated stacks and flares at the petrochemical industrial complex. Results obtained from PCA showed that the major sources of VOCs in the ambient atmosphere of the petrochemical industrial complex were similar to the characteristics of VOCs emitted from the petrochemical industrial complex. The characteristics of VOCs at high altitude had strong correlation with petrochemical industry, indicating that the ambient air quality of northern Kaohsiung was highly influenced by the emission of VOCs from high stacks and flares. In addition, major VOCs for O3 formation potential at northern Kaohsiung were aromatics and vinyls, with particular species of toluene and C2. Moreover, air pollution episodes resulting from high O3 concentration was usually observed in early winter. Flare sampling results indicated that major VOCs emitted from the ground flare of CPC were alkanes and vinyls. The average removal efficiency of TVOCs was 98.2%. The average emission factor of VOCs was 0.0186 kg NMHC/kg flare gas. In addition, stack sampling results indicated that the emission factors of crude oil distillation process (P105), mixing process (P060), and rubber manufacturing… Advisors/Committee Members: Chitsan Lin (chair), Chung-Hsuang Hung (chair), Ya-Fen Wang (chair), Chung-Shin Yuan (committee member).

Subjects/Keywords: ozone formation potential.; principal component analysis; stratification phenomena; vertical profile sampling; Volatile organic compounds

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APA (6th Edition):

Yang, J. (2011). Vertical Distribution and Seasonal Variation of Volatile Organic Compounds in the Ambient Atmosphere of a Petrochemical Industrial Complex. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0902111-140225

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):

Yang, Jhih-Jhe. “Vertical Distribution and Seasonal Variation of Volatile Organic Compounds in the Ambient Atmosphere of a Petrochemical Industrial Complex.” 2011. Thesis, NSYSU. Accessed October 21, 2019. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0902111-140225.

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

MLA Handbook (7th Edition):

Yang, Jhih-Jhe. “Vertical Distribution and Seasonal Variation of Volatile Organic Compounds in the Ambient Atmosphere of a Petrochemical Industrial Complex.” 2011. Web. 21 Oct 2019.

Vancouver:

Yang J. Vertical Distribution and Seasonal Variation of Volatile Organic Compounds in the Ambient Atmosphere of a Petrochemical Industrial Complex. [Internet] [Thesis]. NSYSU; 2011. [cited 2019 Oct 21]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0902111-140225.

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

Council of Science Editors:

Yang J. Vertical Distribution and Seasonal Variation of Volatile Organic Compounds in the Ambient Atmosphere of a Petrochemical Industrial Complex. [Thesis]. NSYSU; 2011. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0902111-140225

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

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