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Production of alkylated gasoline using ionic liquids and immobilized ionic liquids

Paper ID Volume ID Publish Year Pages File Format Full-Text
44496 46034 2006 11 PDF Available
Title
Production of alkylated gasoline using ionic liquids and immobilized ionic liquids
Abstract

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 iC4/C4), 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.

Keywords
Alkylated gasoline; Raffinate II; Ionic liquid; Immobilized ionic liquids; Isobutane alkylation; Hydride transfer
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 304, 10 May 2006, Pages 131–141
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
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Price was $35.95
You save - $31
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Full-text PDF Download
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