Abstract
The kinetics of hydrogenation of CO2 to methane on an NKM-4A nickel-containing catalyst was studied in a wide range of change of partial pressures of hydrogen and carbon dioxide at 498–543 K. It was shown that when hydrogen is replaced by deuterium in the reaction, a reverse kinetic isotope effect is observed. The kinetic equation of the reaction was derived and a stepwise scheme is proposed which includes the involvement of oxygen-containing intermediates in the process without preliminary dissociation of CO2.
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Translated from Teoreticheskaya i éksperimental'naya Khimiya, Vol. 26, No. 5, pp. 620–624, September–October, 1990.
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Ibraeva, Z.A., Nekrasov, N.V., Gudkov, B.S. et al. Kinetics of methanation of carbon dioxide on a nickel catalyst. Theor Exp Chem 26, 584–588 (1991). https://doi.org/10.1007/BF00531916
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DOI: https://doi.org/10.1007/BF00531916