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›› 2012, Vol. 12 ›› Issue (2): 194-199.

• 反应与分离 • 上一篇    下一篇

离子液体/CF3SO3H耦合催化1-丁烯/异丁烷烷基化反应

王鹏 张镇 李海方 张鹏 兰玲 赵国英   

  1. 中国科学院过程工程研究所生化工程国家重点实验室 中国科学院过程工程研究所生化工程国家重点实验室 中国科学院过程工程研究所生化工程国家重点实验室 中国石油天然气股份有限公司石油化工研究院加氢研究室 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
  • 收稿日期:2012-01-12 修回日期:2012-03-01 出版日期:2012-04-20 发布日期:2012-04-20
  • 通讯作者: 王鹏

Alkylation of Isobutane with Ionic Liquid-Triflic Acid Coupled Catalyst

WANG Peng ZHANG Zhen LI Hai-fang ZHANG Peng LAN Ling ZHAO Guo-ying   

  1. State Key Lab. Biochem. Eng., Inst. Process Eng., Chinese Academy of Sciences State Key Lab. Biochem. Eng., Inst. Process Eng., Chinese Academy of Sciences State Key Lab. Biochem. Eng., Inst. Process Eng., Chinese Academy of Sciences Petrochemical Research Institute, PetroChina Company Limited Institute of Process Engineering, Chinese Academy of Sciences
  • Received:2012-01-12 Revised:2012-03-01 Online:2012-04-20 Published:2012-04-20
  • Contact: WANG Peng

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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.

关键词: 烷基化, 离子液体, 超强酸, 耦合催化剂, 异丁烷

Abstract: 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.

Key words: alkylation, ionic liquid, super acid, coupled catalyst, isobutane

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