Process of producing a natural gas substitute

Details Process of producing a natural gas substitute Process of producing a natural gas substitute

1978-06-23

1980-06-03

Fisher, Richard V.

Gas: heating and illuminating

Processes

Fuel mixtures

48206, 48215, 252466J, 2604496M, C10K 304

Patent

active

042059615

ABSTRACT:
An improvement in the production of a natural gas substitute comprising at least about 80% of methane by volume by multi-stage methanation of a synthesis gas containing hydrogen and oxides of carbon over fixed-bed nickel-containing catalysts under a pressure of about 5 to 100 bars. The starting synthesis gas, preferably produced by oxygen and water gasification of coal, has about 8 to 25% by volume of methane on a dry basis. It is methanated in a first stage at an inlet temperature of about 230.degree.-400.degree. C. and an outlet temperature of about 550.degree. to 750.degree. C. and then in a second stage at about 230.degree. to 500.degree. C. The process is economical with respect to heat consumption and equipment cost.

REFERENCES:
patent: 3549556 (1970-12-01), Dienes
patent: 3854895 (1974-12-01), Muller
patent: 3865753 (1975-02-01), Broecker
patent: 3904389 (1975-09-01), Banquy
patent: 3947381 (1976-03-01), Campbell et al.
patent: 3967936 (1976-07-01), Tajbl et al.
patent: 3988262 (1976-10-01), Anderson et al.
patent: 3988263 (1976-10-01), Hansford
patent: 4016189 (1977-04-01), Muller et al.
patent: 4028067 (1977-06-01), Gent
patent: 4130575 (1978-12-01), Jorn

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