Improved resistance against coke deposition of titania supported cobalt and nickel bimetallic catalysts for carbon dioxide reforming of methane

The catalytic behavior of bi-metallic Co–Ni/TiO2 catalysts for CO2 reforming of CH4 to synthesis gas was investigated under atmospheric pressure with a particular attention to carbon deposition. The catalysts with optimized Co/Ni ratios showed high catalytic stability towards the reaction with very...

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Bibliographic Details
Published in:Catalysis letters 2005-08, Vol.102 (3-4), p.153-157
Main Authors: Takanabe, Kazuhiro, Nagaoka, Katsutoshi, Aika, Ken-ichi
Format: Article
Language:English
Subjects:
Bimetals
Carbon dioxide
Catalysis
Catalysts
Deposition
Methane
Nickel
Reforming
Synthesis gas
Titanium dioxide
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Summary:The catalytic behavior of bi-metallic Co–Ni/TiO2 catalysts for CO2 reforming of CH4 to synthesis gas was investigated under atmospheric pressure with a particular attention to carbon deposition. The catalysts with optimized Co/Ni ratios showed high catalytic stability towards the reaction with very little amount of deposited carbon at a wide range of reaction temperature (773–1123 K). The results suggest that adjusting of composition of the active metals (Co and Ni) can kinetically control the elementary steps (formation of carbon species and its removal by oxygen species) of CH4/CO2 reaction.
ISSN:1011-372X
1572-879X
DOI:10.1007/s10562-005-5848-4