A comparison of nickel and rhodium catalysts for the reforming of methane by carbon dioxide

N. W. Cant; R. Dümpelmann; A. M. Maitra

A comparison of nickel and rhodium catalysts for the reforming of methane by carbon dioxide

N. W. Cant, R. Dümpelmann, A. M. Maitra

Research output: Contribution to journal › Review article › peer-review

Abstract

The reforming reaction between CH₄ and CO₂ over Ni/Al₂O₃ at 700°C has been found to show a deuterium kinetic isotope effect and a pattern of kinetic orders which depends on the reactant ratio. It appears that methane activation is rate limiting when CO₂ is in excess but that removal of carbonaceous matter may become rate determining when there is excess CH₄. With Rh/Al₂O₃ the adsorption of methane is partially reversible, the kinetic isotope effect has an intermediate value and removal of deposited matter is rapid.

Original language	English
Pages (from-to)	491-496
Number of pages	6
Journal	Studies in Surface Science and Catalysis
Volume	107
Publication status	Published - 1997

Cite this

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N2 - The reforming reaction between CH4 and CO2 over Ni/Al2O3 at 700°C has been found to show a deuterium kinetic isotope effect and a pattern of kinetic orders which depends on the reactant ratio. It appears that methane activation is rate limiting when CO2 is in excess but that removal of carbonaceous matter may become rate determining when there is excess CH4. With Rh/Al2O3 the adsorption of methane is partially reversible, the kinetic isotope effect has an intermediate value and removal of deposited matter is rapid.

AB - The reforming reaction between CH4 and CO2 over Ni/Al2O3 at 700°C has been found to show a deuterium kinetic isotope effect and a pattern of kinetic orders which depends on the reactant ratio. It appears that methane activation is rate limiting when CO2 is in excess but that removal of carbonaceous matter may become rate determining when there is excess CH4. With Rh/Al2O3 the adsorption of methane is partially reversible, the kinetic isotope effect has an intermediate value and removal of deposited matter is rapid.

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M3 - Review article

AN - SCOPUS:0000245902

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JO - Studies in Surface Science and Catalysis

JF - Studies in Surface Science and Catalysis

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A comparison of nickel and rhodium catalysts for the reforming of methane by carbon dioxide

Abstract

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