Monolithic honeycomb design applied to carbon materials for catalytic methane decomposition

Authors: José M. Gatica, Diana M. Gómez, Sanae Harti, Hilario Vidal

Abstract:
As is well known, carbonaceous materials are good catalysts for methane decomposition, a promising alternative to methane reforming and water gas shift reactions, as the CO₂-free production of hydrogen can be attained. Nevertheless, the continued absence of literature on the use of carbon-based honeycomb monoliths for this application is surprising, despite the monolithic honeycomb design offering obvious advantages compared with conventional packed beds. Therefore, in this work we have prepared integral carbon monoliths and tested them in catalytic CH₄ decomposition. The reaction has been studied at different temperatures (750–900^◦C) and the deactivation with time has been also monitored. Special attention was paid to the influence of the texture generated by different thermal treatments to which the monoliths are subjected after their preparation to eliminate the additives and activate the carbon. For this purpose a deep textural characterization has been carried out. Comparison with the same samples but in the form of powders was also performed.

Keywords:
Carbon
Honeycomb monoliths
Methane decomposition
Catalysis
H2 production

Published in: Applied catalysis A: General  (Volume 458, Pages 1-206, 10 May 2013)

Publisher: Elsevier

ISSN Information: 0926-860X

Monolithic honeycomb design applied to carbon materials for catalytic methane decomposition

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