Isobutane/2-Butene Alkylation Catalyzed by Strong Acids in the Presence of Ionic Liquid Additives

被引：16

作者：

Cong, Y. ^{[1
]}

Liu, Y. ^{[1
]}

Hu, R. ^{[1
]}

机构：

[1] Inner Mongolia Univ, Sch Chem & Chem Engn, Hohhot City 010021, Peoples R China

来源：

PETROLEUM SCIENCE AND TECHNOLOGY | 2014年 / 32卷 / 16期

基金：

中国国家自然科学基金;

关键词：

Alkylation; Ionic liquids; isobutane; sulfuric acid; trifluoromethane-sulfonic acid; OLEFIN ALKYLATION;

D O I：

10.1080/10916466.2012.742540

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Isobutane/2-butene alkylation catalyzed by binary mixtures of acidic ionic liquids (ILs) and strong acids (sulfuric acid or H2SO4 and triflic acid or CF3SO3H) was investigated. The catalytic performances of H2SO4 and CF3SO3H were considerably improved when ILs were added. Using [Emim][OTf]-CuCl/H2SO4 as the catalyst, an alkylate with a high content of the desired trimethylpentane (up to 79.6 wt%) and a high research octane number (up to 99.1) was obtained. The results of electrospray ionization-mass spectrometry indicated that the better distributions of the products obtained with the IL/acid mixtures were due to the Cu-containing anions and cations of the ILs.

引用

页码：1981 / 1987

页数：7

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