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Issue 12, 2016
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Catalysis mechanisms of CO2 and CO methanation

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Abstract

Understanding the reaction mechanisms of CO2 and CO methanation processes is critical towards the successful development of heterogeneous catalysts with better activity, selectivity, and stability. This review provides detailed mechanisms of methanation processes and undesired catalyst deactivation. We characterize the methanation processes into two categories: (1) associative scheme, in which hydrogen atoms are involved in the C–O bond breaking process, and (2) dissociative scheme, where C–O bond breaking takes place before hydrogenation. For the catalyst deactivation mechanisms, we highlight three important factors, i.e. sulfur poisoning, carbon deposition and metal sintering.

Graphical abstract: Catalysis mechanisms of CO2 and CO methanation

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Publication details

The article was received on 03 Mar 2016, accepted on 20 Apr 2016 and first published on 21 Apr 2016


Article type: Minireview
DOI: 10.1039/C6CY00478D
Citation: Catal. Sci. Technol., 2016,6, 4048-4058
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    Catalysis mechanisms of CO2 and CO methanation

    B. Miao, S. S. K. Ma, X. Wang, H. Su and S. H. Chan, Catal. Sci. Technol., 2016, 6, 4048
    DOI: 10.1039/C6CY00478D

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