Propene versus propane steam reforming for hydrogen production over Pd-based and Ni-based catalysts

Experiments of propane and propene steam reforming have been performed over a Pd–Cu/γ-Al 2O 3 catalyst and over a Ni/NiAl 2O 4 catalyst. Over the palladium-based catalyst, the steam reforming of propene is faster and more selective than steam reforming of propane. Over the Pd catalyst, the steam ref...

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Bibliographic Details
Published in:Catalysis communications 2005-07, Vol.6 (7), p.441-445
Main Authors: Resini, Carlo, Herrera Delgado, Maria Concepción, Arrighi, Laura, Alemany, Luis J., Marazza, Rinaldo, Busca, Guido
Format: Article
Language:English
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Summary:Experiments of propane and propene steam reforming have been performed over a Pd–Cu/γ-Al 2O 3 catalyst and over a Ni/NiAl 2O 4 catalyst. Over the palladium-based catalyst, the steam reforming of propene is faster and more selective than steam reforming of propane. Over the Pd catalyst, the steam reforming of propane is likely inhibited by site poisoning. In contrast, over Ni-based catalyst the reforming of propane and propene have similar reaction rates and product selectivity. This suggests a different mechanisms for the two catalysts. The well-known ability of Pd centers to adsorb olefins and catalyze their transformation suggests that over this catalyst π-bonding or di-σ-bonding of the olefin may be a key feature allowing its transformation.
ISSN:1566-7367
1873-3905
DOI:10.1016/j.catcom.2005.03.009