摘要
烷基咪唑氯铝酸盐型室温离子液体[BmIm]Cl-AlCl3催化体系具备良好的降低FCC汽油烯烃含量性能。离子液体的超强酸性可以同时催化FCC汽油中的低碳烯烃与异构烷烃的烷基化、与芳烃的烷基化以及低碳烯烃自身的二聚反应,达到降低汽油烯烃含量的目的。在40℃、20min和剂油体积比1∶10的条件下,FCC汽油烯烃含量下降14.70个百分点,辛烷值基本不变,处理后的汽油烯烃含量符合我国车用汽油的使用标准。离子液体可重复使用。
The olefin content of FCC naphtha was reduced obviously by the superacid containing[BmIm]Cl-AlCl3 ionic liquid system due to the catalysis of olefins to occur alkylation with isoparaffins, Friedel-Crafts reaction with aromatics and dimerization reaction. Test results showed that under the conditions of a volume ratio of ionic liquid to naphtha of 0. 1, a treating temperature of 40 ℃ and a treating time of 40 min, the olefin content of naphtha reduced by 14.70 percentages with minimum octane loss. The olefin content of treated naphtha was less than 35%, meeting the requirement of GB 17930-1999 national standard of automobile gasoline. Moreover, the ionic liquid could be recycled.
出处
《石油炼制与化工》
CAS
CSCD
北大核心
2006年第5期20-23,共4页
Petroleum Processing and Petrochemicals
关键词
催化裂化
催化剂
汽油料
降低
烯烃
离子液体
catalytic cracking
catalyst
gasoline stock
decreasing
olefin
ionic liquid
