Catalyst for methanation and method for the preparation thereof

Details Catalyst for methanation and method for the preparation thereof Catalyst for methanation and method for the preparation thereof

1981-01-19

1982-05-25

Demers, Arthur P.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

585733, B01J 2384

Patent

active

043315445

ABSTRACT:
The invention provides a novel highly heat-resistant solid catalyst for the ethanation of hydrogen and carbon monoxide into methane. Different from conventional nickel catalysts, the inventive catalyst comprises a binary active ingredient composed of an alloy of nickel and molybdenum and a molybdenum carbide supported on a porous catalyst carrier. The catalyst is prepared by heating a catalyst intermediate comprising the oxides of nickel and molybdenum supported on the carrier in a gaseous mixture of hydrogen and carbon monoxide at 500.degree.-700.degree. C., preferably, following a step of hydrogen reduction at 400.degree.-900.degree. C. The most preferable catalyst carrier is a mixture or a composite oxide compound composed of magnesium and aluminum oxides. The methanation reaction can be carried out with the inventive catalyst at a much higher temperature, e.g. 650.degree. C., than with conventional catalysts so that the heat recovery from the gaseous product is greatly facilitated contributing to the energy economy.

REFERENCES:
patent: 2539414 (1951-01-01), Frankenburg
patent: 2755228 (1956-07-01), Anhorn et al.

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