揮發性有機空氣污染物逸散源排放量推估方法之研究

• Main Authors: Huang Chao Chen, 黃兆鎮
• Other Authors: 鄭福田
• Format: Others
• Language: zh-TW
• Published: 1999
• Online Access: http://ndltd.ncl.edu.tw/handle/27456380396125340678

碩士 === 國立臺灣大學 === 環境工程學研究所 === 87 === The basis of enforcement of total allowable emission control is to estimate actual emission rate of pollutants accurately. The major sources of volatilic organic air pollutants from petroleum industry process includes ducts, tanks and equipment components. Among these emission source, the estimation of equipment leaking rate is the most difficult. While employed to estimating the equipment leaking rate, the results from the four approaches suggested by United States EPA range from several to hundred times. Therefore, we may get quite different emission estimated with respect to the same one process. In order to evaluate the total emission rate from a petroleum process, both of the microscopic and macroscopic approaches are investigated in this study. While adapting the Stratified Factor Approach(SFA), the overall emission rate from the process during the sampling period is estimated 2.01 kg/hr. Among the four approaches, the SFA estimation is closest to the emission rate evaluated by macroscopic approach (2.09 kg/hr). Between the twe major category of fugitive VOC, the equipment component has the highest emission rate averaged 1.7 kg/hr and the tanks with 0.31 kg/hr play second place. In order to cut down the total emission rate, the efficient means is to improve the leaking rate of equipment component. The percentage of equipment components with leaking rate higher than 1,000 ppm is 0.7 % only. That means the equipment leaking emission is mainly contributed by these several heavily-emitting components. Therefore, improving the heavily-emitting components is the most efficient way to eliminate the total emission rate, and the cut-down efficiency can be expected to be 91.8 %, according to the estimation by SFA