CO2 reforming of methane to syngas over ordered Ni- mesoporous alumina

Newnham, J, Mantri, K and Bhargava, S 2010, 'CO2 reforming of methane to syngas over ordered Ni- mesoporous alumina', in M. Biggs (ed.) Proceedings of Chemeca 2010: Engineering at the Edge, Adelaide, Australia, 26-29 September 2010, pp. 3323-3333.


Document type: Conference Paper
Collection: Conference Papers

Title CO2 reforming of methane to syngas over ordered Ni- mesoporous alumina
Author(s) Newnham, J
Mantri, K
Bhargava, S
Year 2010
Conference name Chemeca 2010: Engineering at the Edge
Conference location Adelaide, Australia
Conference dates 26-29 September 2010
Proceedings title Proceedings of Chemeca 2010: Engineering at the Edge
Editor(s) M. Biggs
Publisher Engineers Australia
Place of publication Australia
Start page 3323
End page 3333
Total pages 11
Abstract High surface area mesoporous alumina (MAl) with various amounts of Ni (w/w) catalysts were successfully synthesized and evaluated their catalytic activity for CO2 reforming of methane. Effect of Ni loading (7-15 wt%) and process parameters (reaction temperature, space velocity and time-on-stream activity) have been investigated. Ni loading has no significant effect on the conversion of CH4 and CO2, but it has an effect on stability of the catalysts. Lower loading of Ni showed greater stability in terms of coke deposition on the catalyst. The catalyst showed a high stability over the 35h time-on-stream activity, with an average of CH4 and CO2 conversion of about 54% and 64% respectively. The ratio of H2/CO molar ratio remains close to 0.75. The lower H2:CO molar ratio (<1) was due to simultaneous occurrence of the reverse water-gas shift reaction along with the CO2 reforming reaction. The high activity and stability of Ni-MAl catalysts is closely related to a relatively high surface area and high dispersion of Ni within the MAl matrix due to prevention of migration and sintering nickel metal particles that are confined onto the mesoporous channels of the support.
Subjects Catalysis and Mechanisms of Reactions
Copyright notice © 2010 Engineers Australia
ISBN 9780858259713
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