Stable Nickel-Containing Catalysts for the Oxidative Coupling of Methane

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

doi:10.1006/jcat.1994.1050

Stable Nickel-Containing Catalysts for the Oxidative Coupling of Methane

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

Research output: Contribution to journal › Article › peer-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 language	English
Pages (from-to)	402-408
Number of pages	7
Journal	Journal of Catalysis
Volume	145
Issue number	2
DOIs	https://doi.org/10.1006/jcat.1994.1050
Publication status	Published - 1 Jan 1994

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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.",

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AB - 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.

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Stable Nickel-Containing Catalysts for the Oxidative Coupling of Methane

Abstract

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