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Liquid-phase dehydration of 1-phenylethanol over HZSM-5: Kinetic modeling

Paper ID Volume ID Publish Year Pages File Format Full-Text
52778 46886 2009 6 PDF Available
Title
Liquid-phase dehydration of 1-phenylethanol over HZSM-5: Kinetic modeling
Abstract

The liquid-phase dehydration of 1-phenylethanol over HZSM-5 zeolite (Si/Al = 20), at 353–373 K and using cyclohexane as solvent, was studied. Varying initial reactant concentration, a negative order respect to 1-phenylethanol was determined. In all cases, HZSM-5 resulted highly selective to styrene. Experimental data were fitted using LHHW-like kinetic models. Both physical and statistical criteria were applied to discriminate the best heterogeneous kinetic model. The most satisfactory fitting was obtained assuming that styrene is formed from 1-phenylethanol interacting simultaneously with two active sites. This mechanism explains the negative order respect to 1-phenylethanol.

Keywords
1-Phenylethanol; Liquid-phase dehydration; Styrene; HZSM-5; Kinetic modeling
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Liquid-phase dehydration of 1-phenylethanol over HZSM-5: Kinetic modeling
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 10, Issue 9, 25 April 2009, Pages 1339–1344
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
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