氢转移反应与催化裂化汽油质量

加工重质含硫原油以生产高辛烷值、低硫和低烯烃含量的汽油是催化裂化装置所面临的挑战。氢转移是催化裂化的特征反应之一。氢转移反应的进行程度可以在较大范围内改变裂化产品的分布。调控氢转移反应对氢的分配作用可直接降低催化裂化汽油中的硫和烯烃含量，这已引起研究者的关注。概述了氢转移反应及其对汽油产率和辛烷值的影响，介绍了利用氢转移反应对氢的分配作用降低催化裂化汽油硫和烯烃含量的研究进展，并分析和探讨操作条件和催化剂的影响。

EFFECT OF HYDROGEN TRANSFER REACTION ON QUALITY OF FCC GASOLINE

The production of gasoline with high octane number, low-sulfur and low-olefin contents from heavy sour crude is a challenge to catalytic cracking unit. Hydrogen transfer is one of the characteristics of catalytic cracking reaction. The profile of cracked products can be adjusted in a wide range by the degree of hydrogen transfer reaction. Close attentions has been paid by research personnel to the fact that the sulfur and olefin contents in FCC gasoline can be directly decreased by regulating hydrogen distribution via hydrogen transfer reaction. The hydrogen transfer reaction and its effects on the yield and octane number of gasoline were outlined. Research progress in regulating hydrogen distribution by taking advantages of hydrogen transfer reaction to reduce the sulfur and olefin contents in FCC gasoline was introduced and influences of operating conditions and catalyst were also analyzed and discussed.