Stable Nickel-Containing Catalysts for the Oxidative Coupling of Methane

Document Type

Article

Publication Date

1-1-1994

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. © 1994 Academic Press, Inc.

Publication Source (Journal or Book title)

Journal of Catalysis

First Page

402

Last Page

408

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