The proportion of fluid catalytic cracking(FCC) gasoline is as high as 80% in our country. The fraction of olefins in FCC gasoline is around 50 v% which has far exceeded national and international criterion.

• 我国催化裂化汽油(FCC)比例高达80%25,而FCC汽油烯烃体积分数在50%25左右,已经远远超出了国家和国际标准。