降低催化裂化汽油烯烃含量的措施探讨  

Discussion on Measures to Reduce Olefin Content in FCC Gasoline

作　　者：张晓国 Zhang Xiaoguo(Sinopec Changling Company,Yueyang Hunan 414012,China)

机构地区：[1]中国石化长岭分公司,湖南岳阳414012

出　　处：《石油石化绿色低碳》2021年第5期29-33,共5页Green Petroleum & Petrochemicals

摘　　要：以中国石化某分公司280万t/a催化裂化装置为例,分析了影响汽油烯烃含量的主要因素,如原料性质、催化剂性能、汽油馏程等。通过生产调整摸索出了一套可以有效降低汽油烯烃的措施,比如通过粗汽油、轻汽油等进终止剂回炼,可以降低汽油中烯烃体积分数1%~4%;通过提高剂耗或优化催化剂配方,可以有效改善催化剂性能,加强MIP二反氢转移反应,从而降低汽油烯烃含量。通过采取各种措施降低了催化裂化汽油烯烃含量,为全厂汽油国VIA质量升级提供了保障。Taking the actual operation of a 2.8 MMt/a FCC unit in a Sinopec company as an example,this paper analyzes the main factors affecting gasoline olefins,such as raw material properties,catalyst performance,gasoline distillation range control,etc.,and explores a set of measures to effectively reduce gasoline olefins through operation adjustment.By refining crude gasoline and light gasoline with terminator,the olefins in the gasoline is cut by 1%~4%(φ).By increasing catalyst consumption or optimizing catalyst formulation,the performance of catalyst can be effectively improved to enhance the MIP reaction and cut the olefins.These measures have reduced the content of olefins in FCC gasoline,which provided basic guarantee for the quality upgrading of gasoline fuel for the refinery.

关 键 词：催化裂化 汽油烯烃 催化剂 终止剂 操作调整 

分 类 号：TE624.41[石油与天然气工程—油气加工工程]