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From glycerol to lactic acid under inert conditions in the presence of platinum-based catalysts: The influence of support

Paper ID Volume ID Publish Year Pages File Format Full-Text
53473 46971 2015 7 PDF Available
Title
From glycerol to lactic acid under inert conditions in the presence of platinum-based catalysts: The influence of support
Abstract

•Lactic acid was obtained up to 80% yield from glycerol.•Reaction was carried out under inert atmosphere in the presence of Pt/ZrO2 catalysts.•Similar selectivities were achieved using either pure or crude glycerol.

In this work, it was shown that glycerol (Gly) can be effectively converted to lactic acid (LA) under inert atmosphere using a Pt/ZrO2 catalyst. Starting from pure glycerol, at 180 °C and under a He pressure of 30 bar, we were able to achieve up to 80% yield of LA after a reaction time of 8 h. The catalysts performance of Pt/TiO2, Pt/C and Pt/ZrO2 were compared showing that using Pt/ZrO2 high conversion and stable LA selectivity were achieved during all the process. Further, using Pt/ZrO2 the LA selectivity was less sensitive to the nature of the reaction atmosphere while using either H2 or He. While using crude Gly (85% purity), a lower reaction rate was obtained in the presence of Pt/ZrO2, however high selectivity to LA (∼80%) was maintained.

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Keywords
Lactic acid; Zirconia; Platinum catalyst; Glycerol
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From glycerol to lactic acid under inert conditions in the presence of platinum-based catalysts: The influence of support
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Today - Volume 257, Part 2, 15 November 2015, Pages 267–273
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
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Any Questions? feel free to contact us