Methanation process

Details Methanation process Methanation process

1978-07-24

1980-07-08

Mars, Howard T.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

252411S, C07C 104

Patent

active

042117186

ABSTRACT:
Methane is prepared by contacting carbon monoxide and hydrogen in the presence of a supported iridium-containing or rhodium-containing catalyst and a small, effective amount of steam to maintain methanation catalyst activity. In another embodiment, the methanation activity of supported iridium-containing and rhodium-containing catalysts lost due to sulfur poisoning is restored by contacting the catalyst with a sulfur-free feed of carbon monoxide and hydrogen under methanation conditions in the presence of a small, effective amount of steam for a period of time sufficient to substantially restore methanation catalyst activity.

REFERENCES:
patent: 2455419 (1948-12-01), Johnson
patent: 3615164 (1971-10-01), Baker et al.
patent: 4079072 (1978-03-01), Finch

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