Low Temperature Steam Reforming of Ethanol Over Supported Noble Metal Catalysts

The catalytic activity of M/Al 2 O 3 catalysts for the reaction of steam reforming of ethanol has been investigated in the temperature range of 300–450 °C. It has been found that the catalytic performance varies in the order of Pt > Pd > Rh > Ru, with Pt exhibiting high activity and selecti...

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Bibliographic Details
Published in:Topics in catalysis 2008-12, Vol.51 (1-4), p.2-12
Main Authors: Basagiannis, Aristides C., Panagiotopoulou, Paraskevi, Verykios, Xenophon E.
Format: Article
Language:English
Subjects:
Catalysis
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Industrial Chemistry/Chemical Engineering
Original Paper
Pharmacy
Physical Chemistry
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Summary:The catalytic activity of M/Al 2 O 3 catalysts for the reaction of steam reforming of ethanol has been investigated in the temperature range of 300–450 °C. It has been found that the catalytic performance varies in the order of Pt > Pd > Rh > Ru, with Pt exhibiting high activity and selectivity toward hydrogen production, as well as long term stability at low temperatures. It is shown that the reaction occurs in a bifunctional manner, with the participation of both the dispersed metallic phase and the support. Ethanol interacts strongly with the Al 2 O 3 carrier, promoting mainly ethanol dehydration, while in the presence of Pt, catalytic activity is shifted toward lower temperatures. Ethanol decomposition and dehydrogenation reactions dominate at low temperatures, while reforming, water-gas shift and methanation contribute significantly to product distribution.
ISSN:1022-5528
1572-9028
DOI:10.1007/s11244-008-9130-z