Oligomerization of isobutene catalyzed by ionic liquid consisting of anhydrous iron trichloride

YANG Shuqing; ZHENG Xianmin; WANG Luhui; ZHANG Renkun; WANG Dongguang

doi:10.11949/j.issn.0438-1157.20160424

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Oligomerization of isobutene catalyzed by ionic liquid consisting of anhydrous iron trichloride

更新时间：2025-12-10

- Oligomerization of isobutene catalyzed by ionic liquid consisting of anhydrous iron trichloride
- CIESC Journal Issue S1, Pages: 276-282(2016)
- 作者机构：
  
  浙江海洋大学石化与能源工程学院,浙江,舟山,316000
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20160424
  CLC： 43.32
- Online First：31 August 2016，
  
  Published：31 August 2016
- 稿件说明：
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YANG Shuqing, ZHENG Xianmin, WANG Luhui, et al. Oligomerization of isobutene catalyzed by ionic liquid consisting of anhydrous iron trichloride[J]. CIESC Journal, 2016, (S1): 276-282.
DOI：

YANG Shuqing, ZHENG Xianmin, WANG Luhui, et al. Oligomerization of isobutene catalyzed by ionic liquid consisting of anhydrous iron trichloride[J]. CIESC Journal, 2016, (S1): 276-282. DOI： 10.11949/j.issn.0438-1157.20160424.

摘要

离子液体（C2H5）3NHCl-xFeCl3（FeCl3摩尔分率x≥0.55）对异丁烯齐聚反应具有良好的催化性能。在反应温度40℃，反应时间30 min，酸烃比为1.2∶1的条件下，异丁烯齐聚转化率达到85%，液相产物中二聚物和三聚物的含量之和达到80%以上。在离子液体中引入适量CuCl可以提高异丁烯的转化率。当CuCl/[（C2H5）3NH]Cl-0.6FeCl3的摩尔比为0.25时，异丁烯的转化率达到98%，液相产物中二聚物和三聚物的含量之和高达90.20%。

Abstract

The oligomerization of butene is one of important process in chemical and oil refining industries. Its products are important chemical raw materials. Liquid isobutene oligomerization is investigated in a batch autoclave. The ionic liquid (C2H5)3NHCl-FeCl3 (mole fraction of FeCl3 is more than or equal to 0.55) shows good catalytic performance for the oligomerization of isobutene. Under good operating conditions

conversion of isobutene is above 85%

and the total mass content of dimers and trimers in oligomers is above 80%. Addition of CuCl in the ionic liquid can increase both isobutene conversion and the selectivity of dimers and trimers. When the mole ratio of CuCl to[(C2H5)3NH] Cl-0.6FeCl3 is 0.25

the mass content of dimers and trimers in oligomers reach up to 90.20% and conversion of isobutene is 98%.

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