Methane production

Details Methane production Methane production

1974-07-01

1976-05-25

Scovronek, Joseph

Gas: heating and illuminating

Processes

Fuel mixtures

252443, 252447, 260449M, 423414, C07C 904

Patent

active

039589579

ABSTRACT:
Methane is produced by contacting a mixture of carbon monoxide or carbon dioxide and hydrogen with a carbon-alkali metal catalyst at a temperature in the range between about 800.degree.F. and about 1500.degree.F. and at a pressure between about atmospheric and about 2000 psig. The catalyst employed may be prepared by heating an intimate mixture of coal, coal char, coke or other carbonaceous solids and an alkali metal salt, hydroxide or similar constituent. Such a catalyst promotes the methanation of carbon monoxide and carbon dioxide and the formation of higher hydrocarbons by the Fischer-Tropsch reaction and at the same time is resistant to high temperature sintering and poisoning by sulfur compounds present in the feed gas. The catalyst can be regenerated if necessary by air oxidation.

REFERENCES:
patent: 3511624 (1970-05-01), Humphries et al.
patent: 3759679 (1973-09-01), Franz et al.
patent: 3838993 (1974-10-01), Aldridge
patent: 3838994 (1974-10-01), Aldridge
patent: 3842113 (1974-10-01), Ichikawa et al.
patent: 3842121 (1974-10-01), Ichikawa et al.

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