Process for the combined coking and gasification of coal

Details Process for the combined coking and gasification of coal Process for the combined coking and gasification of coal

1982-02-01

1983-08-09

Lindsay, Jr., Robert L.

Gas: heating and illuminating

Processes

Coal and water

48203, 48210, 252373, C10J 300

Patent

active

043976565

ABSTRACT:
A combined gasification/devolatilization process for coal in coal residues is disclosed wherein hydrogen rich volatiles are recovered prior to gasification of the coal. The recovery of hydrogen volatiles is dependent upon the rapid heating of coal obtained by admixture with hot char previously gasified in a riser with steam and a catalyst if necessary. The hot char is provided by combustion of devolatilized coal in a fluid bed regenerator. Alternative systems are provided for purifying the devolatilized coal prior to its charring.

REFERENCES:
patent: 3694346 (1972-09-01), Blaser et al.
patent: 3702516 (1972-11-01), Luckenbach
patent: 3847563 (1974-11-01), Archer et al.
patent: 3876392 (1975-04-01), Kalina et al.
patent: 4032305 (1977-06-01), Squires
patent: 4069304 (1978-01-01), Starkovich
patent: 4269696 (1981-05-01), Metrailer

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