Manufacture of methane

Details Manufacture of methane Manufacture of methane

1973-11-13

1976-04-13

Thomas, Jr., James O.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

2604496, 252466PT, C07C 2706

Patent

active

039503682

ABSTRACT:
A two-stage process for the manufacture of methane from hydrocarbons is described. In the first stage, the hydrocarbons are converted into methane-rich gases, using the nickel catalyst described below. The cracked gases thus obtained are cooled and converted into methane-rich gases in a further catalytic process stage, using a methanization catalyst or the nickel catalyst mentioned below. To produce the nickel catalyst, the compound Ni.sub.6 Al.sub.2 (OH).sub.16.CO.sub.3.4H.sub.2 O is prepared in aqueous solution. The catalyst is obtained from this compound by drying, calcination and subsequent reduction in a stream of hydrogen whilst maintaining very specific temperature gradients between the drying stage and the calcination stage.

REFERENCES:
patent: 3420642 (1969-01-01), Percival
patent: 3488171 (1970-01-01), Baker et al.
patent: 3709669 (1973-01-01), Marion

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