离子液体在FCC汽油脱硫中的应用研究  

STUDY ON APPLICATION OF IONIC LIQUIDS AS CATALYST IN DESULFURIZATION OF FCC GASOLINE

作　　者：柯明[1] 汤奕婷[1] 曹文智[1] 宋昭睁[1] 蒋庆哲[1] 

机构地区：[1]重质油国家重点实验室.中国石油大学(北京),北京昌平102249

出　　处：《西南石油大学学报（自然科学版）》2010年第3期145-149,共5页Journal of Southwest Petroleum University(Science & Technology Edition)

基　　金：中国石油中青年创新基金项目(07E1009)

摘　　要：研究了新型Brφnsted酸性离子液体[BMIM]HSO4与H2SO4复配体系在催化裂化(FCC)汽油烷基化脱硫中的应用,考察了温度、时间、催化剂酸性、催化剂量和二烯烃加入量等因素对FCC汽油脱硫的影响。结果表明:随着催化剂酸性增强,汽油脱硫率逐渐增大;加入少量二烯烃可明显提高FCC汽油脱硫率。在30℃、反应120min、5%复配催化剂条件下,加入适量二烯烃,可使石家庄FCC汽油硫质量浓度由608mg/L降至105mg/L,大港FCC汽油硫含量由122mg/L降至32mg/L,且辛烷值变化不大。Reducing sulfur content in FCC gasoline by using the complex of Brnsted acidic ionic liquid [BMIM]HSO4 and sulfuric acid as alkylation catalyst is introduced.The main factors for desulfurization rate of FCC gasoline such as reaction temperature,reaction time,acidity of complex catalyst,catalyst content and the amount of isoprene are studied.The results show that the desulfurization rate can be increased as the acidity of complex catalyst increases,and it may be increased obviously by adding a small amount of isoprene.Under the catalysis of 5% complex catalyst,the sulfur content of Shijiazhuang FCC gasoline can be reduced from 608mg/L to less than 105mg/L,and the content of Dagang FCC gasoline can be reduced from 122mg/L to 32mg/L by adding some isoprene at 30℃ when the reaction time is 120min,and the octan number of FCC gasoline is little changed.

关 键 词：离子液体 FCC汽油 脱硫 二烯烃 烷基化 

分 类 号：TE624.4[石油与天然气工程—油气加工工程]