A comparison study on estimation method of VOCs fugitive emission from equipment - in case of a petrochemical plant

• Main Authors: Li-min Lin, 林立民
• Other Authors: none
• Format: Others
• Language: zh-TW
• Published: 2012
• Online Access: http://ndltd.ncl.edu.tw/handle/94194930876362759792

碩士 === 國立雲林科技大學 === 環境與安全衛生工程系碩士班 === 100 === The introduction of sulfur oxides, particulate pollutants and nitrogen oxide air pollution control fee "based on the polluter-pays principle, the Environmental Protection Administration of Taiwan referred to as the air pollution fee since 1995, and included the volatile organic compounds (VOCs) in 2007. Device components fugitive emission factor of pollutant estimation method adopted by the TW-EPA announcement as a reference to the U.S. Environmental Protection Agency announced coefficient, the coefficient estimate emissions estimated results is a common cause of dispute between the manufacturers and EPA the accuracy to understand the plant was established emission factor bulletin coefficient differences. This study as the research object selected a styrene plant, equipment components in the area of process the enclosed sampling and single target components of emissions, to gather sufficient data to estimate emissions for each of the estimation methods and compare their differences, and then analyzes the differences in various estimation methods and the actual emissions; and sampling data provided factory for high leakage component maintenance and emission reduction actions. This project will be the sampling step through a transparent and rigorous process of estimating and feasibility of the enclosed detection of our study was to evaluate self-plant equipment components. Comparison of the actual enclosed sampling and emissions estimates using different methods, can be found today''s announcement by the EPA emission factor for the plant does not apply, and will be significantly overestimated their emissions; using the U.S. Environmental Protection Agency announced emission coefficient have great error may be due to the climatic conditions of different regions and pipeline maintenance proper rate difference between leaving the emission rate predicted results with the actual emission rate limit repair high standard of preparedness; taken to the site for the high concentration of leak detection equipment components, resulting in this study cannot be obtained in the plant area more high the leak concentration equipment components enclosed coated sample estimate has more uncertainty, it is for the high leakage concentration of emissions. Use a all kind of methods to establish the emission coefficient inference can stream used to the nature of the process similar to the process plant, when use the coefficient, have to considering the different process plant equipment components of the maintenance standard, maintenance conditions whether the same, and the established coefficient has enough representative to estimate the emissions in line with the actual emissions.