Process for fixed bed coal gasification

Details Process for fixed bed coal gasification Process for fixed bed coal gasification

1991-12-26

1992-09-08

Kratz, Peter

Gas: heating and illuminating

Processes

Fuel mixtures

48203, 48206, 48209, 48210, C10J 314

Patent

active

051454904

ABSTRACT:
The combustion of gas produced from the combination of coal pyrolysis and gasification involves combining a combustible gas coal and an oxidant in a pyrolysis chamber and heating the components to a temperature of at least 1600.degree. F. The products of coal pyrolysis are dispersed from the pyrolyzer directly into the high temperature gasification region of a pressure vessel. Steam and air needed for gasification are introduced in the pressure vessel and the materials exiting the pyrolyzer flow down through the pressure vessel by gravity with sufficient residence time to allow any carbon to form carbon monoxide. Gas produced from these reactions are then released from the pressure vessel and ash is disposed of.

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M. Gomez et al., "Entrained-Bed Carbonization of Highly Fluid Bituminous Coals", U.S. Dept. of the Interior, Bureau of Mines, RI 7141 (1968).
Draft Document, "Gasifier Design Modifications Required to Accommodate High Free Swelling Coals", Contract No. DE-AC21-89MC26291, U.S. Dept. of Energy, (Jun. 1990).

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