离子液体/CF_3SO_3H耦合催化1-丁烯/异丁烷烷基化反应  

Alkylation of Isobutane with Ionic Liquid-Triflic Acid Coupled Catalyst

作　　者：王鹏[1] 张镇[2] 李海方[2,3] 张鹏[1] 兰玲[1] 赵国英[2] 

机构地区：[1]中国石油天然气股份有限公司石油化工研究院,北京100195 [2]中国科学院过程工程研究所多相复杂系统国家重点实验室,离子液体清洁过程北京市重点实验室,北京100190 [3]河北科技大学化学与制药工程学院,河北石家庄050018

出　　处：《过程工程学报》2012年第2期194-199,共6页The Chinese Journal of Process Engineering

摘　　要：采用季胺化反应—复分解或质子化两步法设计合成了系列阴离子为BF4-或CF3SO3-的咪唑类、吡啶类的功能化离子液体.系列功能化离子液体与三氟甲磺酸耦合催化1-丁烯/异丁烷的烷基化反应,并获得了C8选择性81.1%,TMP/DMH=8.36及RON值为95.3的良好催化效果,耦合催化剂在不降低催化活性的条件下可循环使用6次.A series of task specific ionic liquids based on imidazolium and pyridine with BF4-/CF3SO3- anion were synthesized through quaternary ammonium metathesis and protonation reaction. The above ionic liquids coupled with triflic acid were applied to catalyze the isobutane alkylation. Excellent alkylate quality with high C8 selectivity （81.8%）, the ratio TMP to DMH at 8.36 and high research octane number 95.3 were obtained by tuning the type and content of ionic liquids. The coupled catalyst can be recycled for six times without significant loss of activity.

关 键 词：烷基化 离子液体 超强酸催化剂 耦合催化剂 异丁烷 

分 类 号：TQ028.1[化学工程]