【摘要】：加油站VOCs排放是北京市VOCs的主要來源之一,中國、美國環(huán)保署、歐洲環(huán)境署加油環(huán)節(jié)的未控制排放因子(UEF)分別是加州空氣資源委員會(CARB)加油UEF(1 008 mg·L-1)的2.16、1.31和1.00倍,中國20年來汽油標(biāo)準(zhǔn)發(fā)生了變化,急需開展加油VOCs排放因子本地化研究.本研究對比發(fā)現(xiàn)歐盟加油排放因子測試方法比CARB簡單易操作,借鑒歐盟方法加工了加油VOCs排放因子測試裝置,并在北京市某加油站的美國加油油氣回收系統(tǒng)(StageⅡ)開展加油VOCs排放因子測試.結(jié)果表明:1針對試驗油箱,冬夏季加油油氣回收效率分別是氣液比(A/L)的0.93和0.83倍,夏季加油排放因子大于冬季,且回收效率小于冬季;2針對社會車輛,A/L=0時冬夏季加油UEF分別為(525±42)mg·L-1和(963±174)mg·L-1,分別是CARB加油UEF的0.52倍和0.95倍,冬夏季在A/L為1.05~1.07時的排放因子平均值分別為(55±30)mg·L-1和(112±108)mg·L-1;3選取無油氣回收時社會車輛加油UEF作為北京市冬夏季加油UEF,結(jié)合試驗油箱建立的冬夏季排放因子與A/L的線性方程,計算有油氣回收時不同A/L的排放因子.
[Abstract]:VOCs emissions from gas stations are one of the main sources of VOCs in Beijing, China, the U.S. Environmental Protection Agency, The uncontrolled emission factor (UEF) in the refueling process of the European Environment Agency is 2.16,1.31 and 1.00 times higher than that of the California Air Resources Commission (CARB) refueling UEF (1 008 mg 路L-1), respectively. Gasoline standards in China have changed over the past 20 years. There is an urgent need to study the localization of VOCs emission factors for refueling. This study finds that the EU refueling emission factor test method is simpler than the CARB, and uses the EU method for reference to process the refueling VOCs emission factor testing device. Gas recovery system (Stage 鈪，

本文編號：2469990