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Preparation of Amberlyst-coated pervaporation membranes and their application in the esterification of acetic acid and butanol

Paper ID Volume ID Publish Year Pages File Format Full-Text
44462 46030 2007 7 PDF Available
Title
Preparation of Amberlyst-coated pervaporation membranes and their application in the esterification of acetic acid and butanol
Abstract

Catalytic Amberlyst 15 layers have been deposited on composite ceramic/poly(vinyl)alcohol membranes by the dip-coat technique using Aculyn® as a rheology modifier. Tuning of the catalytic layer thickness is possible by varying the number of dip-coat steps. The obtained “dried-mud like” Amberlyst 15 layers are stable during pervaporation and reaction experiments. The catalytic activity of the Amberlyst-coated pervaporation membrane equals the activity of the unsupported catalyst. In the pervaporation-assisted esterification reaction between acetic acid and 1-butanol the catalytic membrane is able to couple catalytic activity and water removal. Due to the high activity of the Amberlyst catalyst the conversion of the esterification reaction is limited by the removal rate of water through the membrane. This is in contrast to zeolite-coated pervaporation membranes, for which the conversion of the esterification reaction between acetic acid and 1-butanol is limited by the catalytic activity.

Graphical abstractIn the manuscript we describe the preparation of composite catalytic membranes by deposition of catalytic Amberlyst 15 layers on top of ceramic supported PVA membranes via the dip-coating technique. We show that this approach allows independent optimisation of both the catalytic and separation functions of the membranes, facilitating efficient integration of reaction and separation. Figure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
Catalytic membrane; Pervaporation; Esterification; Amberlyst 15; Structured catalyst
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Preparation of Amberlyst-coated pervaporation membranes and their application in the esterification of acetic acid and butanol
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 317, Issue 1, 27 January 2007, Pages 113–119
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us