Stable Nickel-Containing Catalysts for the Oxidative Coupling of Methane

Kerry M. Dooley, Shang Yang Chen, J. R.H. Ross

Research output: Contribution to journalArticlepeer-review

Abstract

A new catalyst based on the K/Ca/Ni oxide system has been developed for the oxidative coupling of methane at <700°C. It is capable of up to 70% selectivity to C2+ hydrocarbons at complete O2 conversion (CH4/O2 ratio = 2.5) if 35% water is present in the feed. Unlike previous materials of this type, the present catalyst is stable at the conditions of its maximum yield to C2+ products and is not poisoned by CO2. On the contrary, it appears as if CO2 promotes formation of a selective hydroxycarbonate phase which develops under reaction conditions.

Original languageEnglish
Pages (from-to)402-408
Number of pages7
JournalJournal of Catalysis
Volume145
Issue number2
DOIs
Publication statusPublished - 1 Jan 1994

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