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Selective gas-phase conversion of maleic anhydride to propionic acid on Pt-based catalysts

Paper ID Volume ID Publish Year Pages File Format Full-Text
50132 46781 2013 5 PDF Available
Title
Selective gas-phase conversion of maleic anhydride to propionic acid on Pt-based catalysts
Abstract

Pt-based catalysts, supported on Al2O3, SiO2 and SiO2–Al2O3, were prepared by incipient wetness impregnation and tested in the gas phase hydrogenation of maleic anhydride at atmospheric pressure and 240 °C. In these conditions, the hydrogenolytic activity pattern was: Pt/SiO2 > Pt/Al2O3 > Pt/SiO2–Al2O3, which is just the opposite of the support acidity trend. These metal Pt-based catalysts showed high selectivity to propionic acid, which was always higher than 80%. The selectivity pattern to this product was: Pt/Al2O3 > Pt/SiO2 > Pt/SiO2–Al2O3. Both activity and selectivity patterns may be explained on the basis of metal-support interaction and support acidity.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► A novel one-step process for propionic acid production in gas phase is proposed. ► Succinic anhydride is selectively converted into propionic acid on Pt-based catalysts. ► Support acidity plays an important role on succinic anhydride hydrogenolysis. ► Propionic acid yield increases as support acidity and Pt-support interaction decrease.

Keywords
Hydrogenation; Hydrogenolysis; Propionic acid; Platinum supported catalysts
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Selective gas-phase conversion of maleic anhydride to propionic acid on Pt-based catalysts
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 35, 5 May 2013, Pages 59–63
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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Full-text PDF Download
Online Support
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