Methanation process for the production of an alternate fuel for

Details Methanation process for the production of an alternate fuel for Methanation process for the production of an alternate fuel for

1975-09-04

1977-02-01

Lindsay, Jr., Robert L.

Gas: heating and illuminating

Processes

Fuel mixtures

48210, 260449M, C10J 100

Patent

active

040059960

ABSTRACT:
A process is provided for the catalytic enrichment of a gas having a low BTU level and which has been derived from the gasification of coal and which has been scrubbed for removal of impurities and for the partial removal of carbon dioxide. The process involves the catalytic methanation of hydrogen and carbon oxides over a highly active catalyst in multiple stages to produce methane and steam. The cold scrubbed feed gas is brought up to reaction temperature by heat exchange with recycled product gas from the first stage of methanation, which in admixture with said feed gas acts additionally to modify the composition of said feed gas to bring it outside of the carbon forming range at the outlet of the reactor and to supply steam to said feed gas to prevent carbon deposition on to the catalyst and to absorb the heat of reaction. The enriched product gas after removal of water is interchangeable with natural gas and is of pipeline quality.

REFERENCES:
patent: 3511624 (1970-05-01), Humphries et al.
patent: 3625664 (1971-12-01), Padovani
patent: 3854895 (1974-12-01), Muller

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