The catalytic low temperature oxydehydrogenation of methane. Temperature dependence, carbon balance and effects of catalyst composition

J. Raskó, P. Pereira, G. A. Somorjai, H. Heinemann

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

In an earlier publication [1] it has been claimed that oxidative coupling of methane to higher hydrocarbons had been obtained with close to 100% selectivity at 600 ° C and atmospheric pressure in the presence of steam over a CaNiK oxide catalyst. These results have been confirmed in longer runs. Artifacts, such as carbonate formation on the catalyst, have been excluded. The reaction is slightly exothermic. An Arrhenius plot shows that methane oxidation to CO2 predominates at temperatures above 600 ° C and oxidative methane coupling at lower temperatures. The importance of exact catalyst composition is demonstrated.

Original languageEnglish
Pages (from-to)395-401
Number of pages7
JournalCatalysis Letters
Volume9
Issue number5-6
DOIs
Publication statusPublished - Sep 1991

Fingerprint

Methane
Carbon
methane
catalysts
temperature dependence
Catalysts
carbon
Chemical analysis
Arrhenius plots
Carbonates
Steam
Hydrocarbons
steam
Temperature
Oxides
Atmospheric pressure
artifacts
carbonates
atmospheric pressure
hydrocarbons

Keywords

  • catalytic methane conversion
  • Oxydehydrogenation of methane

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Catalysis

Cite this

The catalytic low temperature oxydehydrogenation of methane. Temperature dependence, carbon balance and effects of catalyst composition. / Raskó, J.; Pereira, P.; Somorjai, G. A.; Heinemann, H.

In: Catalysis Letters, Vol. 9, No. 5-6, 09.1991, p. 395-401.

Research output: Contribution to journalArticle

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