Study on the sensitivity of parameters of VOCs emission accounting formula for oil tank in China and America
GONG Huan-zhang1, LI Ji-heng1, ZHAO Jie2, YANG Jing-yi2, WANG Zhan-sheng3, LI Wei1
1. Key Laboratory of Resource and Environmental System of the Ministry of Education, North China Electric Power University, Beijing 102206, China;
2. Petro China West Pipeline Company, Urumqi 830013, China;
3. Research Institute of Safety and Environmental Technique, China National Petroleum Corporation, Beijing 102206, China
Sinopec VOCs emission accounting formula and the EPA recommended formula were introduced, and the merits and faults of two methods were compared and analyzed. By the case study of tank emission accounting, the reasons that lead to the different results of the two kinds of method were analyzed, and the result of VOCs emission was determined as 43.43t/a. The method of regression analysis was utilized, and the sensitivity of the main parameters of the Sino-US accounting formula is studied, the R2 of each parameter fitting equation is close to 1, based on t test p value at a significance level of 0.05, and the following conclusions were obtained:in the calculation of floating roof tank VOCs emission, the sensitive parameters of Sinopec formula include adhesion coefficient, wind speed, secondary seal coefficient, seal coefficient and wind speed index; and the sensitive parameters of EPA formula were inner surface adhesion coefficient, wind speed, no edge sealing discharge coefficient, wind edge sealing emission coefficient and the floating roof sealing length coefficient, while the wind speed index was non-sensitive parameter.
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GONG Huan-zhang, LI Ji-heng, ZHAO Jie, YANG Jing-yi, WANG Zhan-sheng, LI Wei. Study on the sensitivity of parameters of VOCs emission accounting formula for oil tank in China and America. CHINA ENVIRONMENTAL SCIENCECE, 2018, 38(9): 3298-3304.
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