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The nature of catalytic activity and deactivation of chloroaluminate ionic liquid

Paper ID Volume ID Publish Year Pages File Format Full-Text
43851 45991 2006 7 PDF Available
Title
The nature of catalytic activity and deactivation of chloroaluminate ionic liquid
Abstract

The chloroaluminate ionic liquid (CAIL) of the (CH3)3NHCl·nAlCl3 composition was studied by physico-chemical methods and catalytic activity measurements in heptane isomerization reaction. The data were also obtained on HCl solubility in CAIL depending on pressure and AlCl3 distribution between CAIL and heptanes depending on concentration. Based on obtained results CAIL is a homogeneous catalytic system containing an active component (HCl), co-catalyst (AlCl3) strengthening its catalytic activity, and solvent—so-called “neutral” ionic liquid. The CAIL main deactivation causes were studied including HCl loss and formation of acid soluble oil (ASO) poisoning the catalyst. The difference between CAIL and superacid catalysts poisoning by ASO was discussed.

Graphical abstractThe chloroaluminate ionic liquid (CAIL) of the (CH3)3NHCl·nAlCl3 composition was studied in heptane isomerization reaction. CAIL is a typical homogeneous catalytic system containing the following: active component (HCl), co-catalyst (AlCl3) strengthening its catalytic activity, and solvent—so-called “neutral” ionic liquid. Its main deactivation causes were studied including HCl loss and poisoning by acid soluble oil (ASO) accumulation. Figure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
Chloroaluminate ionic liquid; Catalytic activity; Catalyst deactivation; Paraffin isomerization; Acid soluble oil (ASO)
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 315, 23 November 2006, Pages 128–134
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Price was $35.95
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