Abstract: The selective CO methanation in hydrogen-rich gas mixtures in the presence of CO2 is a promising way for deep CO removal designed for low-temperature proton-exchanged membrane fuel cell feeding applications, as well as a challenging fundamental problem of substrate-selective hydrogenation. Catalytic properties of Ni-, Co- and Fe/CeO2 catalysts, prepared from nitrate and chloride precursors, in the selective CO methanation were studied. The Ni(Cl)/CeO2 catalyst, prepared from NiCl2 precursor, was the most efficient, being less active than Ni/CeO2 and Co/CeO2, but considerably more selective. This phenomenon could be explained by ceria surface blocking by chlorine species and appropriate inhibition of CO2 hydrogenation activity

Cite: Potemkin D.I. , Konishcheva M.V. , Snytnikov P.V. , Sobyanin V.A.
Selective CO Methanation over Ceria-Supported Ni, Co and Fe Catalysts
In compilation EuropaCat XII. Catalysis: Balancing the use of fossil and renewable resources. XII European Congress on Catalysis, Kazan (Russia), 30 August - 4 September, 2015 : Book of Abstracts. – BIC SB RAS., 2015. – C.1240-1241. – ISBN 978-5-906376-10-7.

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