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Sulfonic-functionalized SBA-15 as an active catalyst for the gas-phase dehydration of Glycerol

Paper ID Volume ID Publish Year Pages File Format Full-Text
50857 46818 2012 5 PDF Available
Title
Sulfonic-functionalized SBA-15 as an active catalyst for the gas-phase dehydration of Glycerol
Abstract

Sulfonic-functionalized mesoporous silicas (SBA-15) were used as catalysts in the gas-phase dehydration of glycerol at moderate temperature (275 and 300 °C). For the tested conditions all the samples show a very high catalytic activity. At the lowest temperature and for 140 h on stream a nearly constant selectivity to acrolein of ca. 80% could be obtained. Both the pore size and density of acid sites play an important role in the deactivation rate and selectivity: larger pore size may extend significantly the catalytic activity and high density of acid sites may reduce acrolein production. Increasing the temperature to 300 °C is beneficial to the acrolein production, but it also leads to an increase of the deactivation rate.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► Sulfonic-functionalized mesoporous silica (SBA-15) is highly active for glycerol dehydration. ► Catalyst long-term stability can be achieved by the adequate choice of pore width and density of acid sites. ► A nearly constant selectivity to acrolein above 80% may be obtained at moderate temperature (275 °C).

Keywords
Glycerol; Dehydration; Acrolein; SBA-15; Sustainable chemistry
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Sulfonic-functionalized SBA-15 as an active catalyst for the gas-phase dehydration of Glycerol
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 19, March 2012, Pages 105–109
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
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us