Integrated catalytic coal devolatilization and steam gasificatio

Details Integrated catalytic coal devolatilization and steam gasificatio Integrated catalytic coal devolatilization and steam gasificatio

1979-12-21

1981-09-29

Kratz, Peter F.

Gas: heating and illuminating

Processes

Fuel mixtures

48202, 48210, 208 10, C10J 354

Patent

active

042920485

ABSTRACT:
Hydrocarbon liquids and a methane-containing gas are produced from carbonaceous feed solids by contacting the solids with a mixture of gases containing carbon monoxide and hydrogen in a devolatilization zone at a relatively low temperature in the presence of a carbon-alkali metal catalyst. The devolatilization zone effluent is treated to condense out hydrocarbon liquids and at least a portion of the remaining methane-rich gas is steam reformed to produce the carbon monoxide and hydrogen with which the carbonaceous feed solids are contacted in the devolatilization zone. The char produced in the devolatilization zone is reacted with steam in a gasification zone under gasification conditions in the presence of a carbon-alkali metal catalyst and the resultant raw product gas is treated to recover a methane-containing gas.

REFERENCES:
patent: 2687950 (1954-08-01), Kalbach
patent: 2694623 (1954-11-01), Welty et al.
patent: 3004839 (1961-10-01), Tornquist
patent: 3929431 (1975-12-01), Koh et al.
patent: 3958957 (1976-05-01), Koh et al.
patent: 3985519 (1976-10-01), Kalina et al.
patent: 4094650 (1978-06-01), Koh et al.
patent: 4118204 (1978-10-01), Eakman et al.
New Coal Gasifier to be Tested, Coal Age, Dec. 1977, pp. 145-151.

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