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Liquid-phase dehydration of 1-phenylethanol over mordenite-like zeolites: Influence of Si/Al ratio

Paper ID Volume ID Publish Year Pages File Format Full-Text
51632 46848 2008 5 PDF Available
Title
Liquid-phase dehydration of 1-phenylethanol over mordenite-like zeolites: Influence of Si/Al ratio
Abstract

The liquid-phase dehydration of 1-phenylethanol over mordenite-like zeolites, with different Si/Al ratios, was studied at 363 K using cyclohexane as solvent. It was determined that catalyst activity and selectivity greatly depended on the Si/Al ratio. The non-dealuminated mordenite showed the lowest activity, dehydrating 1-phenylethanol mainly to α-methylbenzyl ether via an intermolecular mechanism. Instead, intramolecular dehydration of 1-phenylethanol into styrene was mainly observed over dealuminated samples. Changes in catalytic performance with Si/Al ratio was explained on the basis of: (1) acid site density; (2) relative amount of strong acid sites respect to weak ones; (3) accessibility to strong acid sites.

Keywords
Liquid-phase dehydration; 1-Phenylethanol; Styrene; Mordenites
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Liquid-phase dehydration of 1-phenylethanol over mordenite-like zeolites: Influence of Si/Al ratio
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 10, Issue 2, 15 November 2008, Pages 261–265
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Price was $35.95
You save - $31
Price after discount Only $4.95
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Full-text PDF Download
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