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Title: Process for fixed bed coal gasification

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.
Authors:
 [1]
  1. (Greenville, SC)
Publication Date:
OSTI Identifier:
868459
Report Number(s):
US 5145490
DOE Contract Number:
AC21-91MC28202
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
process; fixed; bed; coal; gasification; combustion; gas; produced; combination; pyrolysis; involves; combining; combustible; oxidant; chamber; heating; components; temperature; 1600; degree; products; dispersed; pyrolyzer; directly; region; pressure; vessel; steam; air; introduced; materials; exiting; flow; gravity; sufficient; residence; time; allow; carbon; form; monoxide; reactions; released; ash; disposed; coal pyrolysis; involves combining; temperature gas; residence time; pressure vessel; carbon monoxide; coal gasification; combustible gas; coal gas; fixed bed; form carbon; bed coal; gas produced; sufficient residence; pyrolysis chamber; gas coal; gasification involves; /48/