Production of alkylated gasoline using ionic liquids and immobilized ionic liquids

被引：59
作者：
Kumar, Prashant
Vermeiren, Walter
Dath, Jean-Pierre
Hoelderich, Wolfgang F.
机构：
[1] Univ Regina, Fac Engn, Regina, SK S4S 0A2, Canada
[2] Univ Aachen, RWTH, Dept Chem Technol & Heterogeneous, D-52074 Aachen, Germany
[3] Total Petrochem Res SA, Refining & Base Chem Dept, B-7181 Feluy, Belgium
来源：
APPLIED CATALYSIS A-GENERAL | 2006年 / 304卷 / 01期
关键词：
alkylated gasoline; raffinate II; ionic liquid; immobilized ionic liquids; isobutane alkylation; hydride transfer;
D O I：
10.1016/j.apcata.2006.02.030
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Ionic liquids (ILs) and immobilized ionic liquids were used as acid catalysts for the liquid phase alkylation of raffinate II and isobutane. The influences of reactant concentration (molar ratio of iC(4/)C(4)(=)), time, temperature and acid strength of the ionic liquids were studied. Using a step-up design under batch conditions with a very dilute mixture of isobutane and alkene, the conversion for a variety of ionic liquids was found to follow a pattern based on acid strength of the catalyst. Imidazolium based ILs were found to be superior to phosphonium based ILs. Novel Lewis-Acid Catalysts II (NLAC II, immobilization by grafting on siliceous MCM 41 or on silica FK 700) are better than other solid acid catalysts tested, such as SAC 13, zeolite H-Beta (Si/Al = 14) and NLAC I (impregnation of ILs on silica FK 700). Possible leaching of the ionic liquid from the catalyst surface was followed by ICP measurements of the catalyst after reaction and of the reaction mixture. (c) 2006 Elsevier B.V. All rights reserved.
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页码：131 / 141
页数：11
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