Converting low BTU gas to high BTU gas

Details Converting low BTU gas to high BTU gas Converting low BTU gas to high BTU gas

1979-12-28

1982-03-09

Kratz, Peter F.

Gas: heating and illuminating

Processes

Fuel mixtures

48203, 518705, C10K 304

Patent

active

043187110

ABSTRACT:
Low BTU feed gas formed by gasification of carbonaceous materials with air is converted to high BTU gas by partial carbon monoxide separation and by using the reducing characteristic of the remaining feed gas in the iron reduction unit of a standard iron-steam process for manufacturing hydrogen. The hydrogen manufacturing stage also removes nitrogen which is a primary cause of low heat value in upgraded gases. The separated CO and the manufactured H.sub.2 are converted to a high quality methane. In the process, other undesirable impurities and diluents like hydrogen sulfide and carbon dioxide may be removed first.

REFERENCES:
patent: 983199 (1911-01-01), Bedfad et al.
patent: 3442619 (1969-05-01), Huebler et al.
patent: 3854895 (1974-12-01), Muller

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