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Title: Method of operating a two-stage coal gasifier

Abstract

A method of operating an entrained flow coal gasifier (10) via a two-stage gasification process. A portion of the coal (18) to be gasified is combusted in a combustion zone (30) with near stoichiometric air to generate combustion products. The combustion products are conveyed from the combustion zone into a reduction zone (32) wherein additional coal is injected into the combustion products to react with the combustion products to form a combustible gas. The additional coal is injected into the reduction zone as a mixture (60) consisting of coal and steam, preferably with a coal-to-steam weight ratio of approximately ten to one.

Inventors:
 [1]
  1. (Tariffville, CT)
Issue Date:
OSTI Identifier:
864293
Patent Number(s):
4343627
Assignee:
Combustion Engineering, Inc. (Windsor, CT) OSTI
DOE Contract Number:  
E(49-18)-1545
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; operating; two-stage; coal; gasifier; entrained; flow; 10; via; gasification; process; portion; 18; gasified; combusted; combustion; zone; 30; near; stoichiometric; air; generate; products; conveyed; reduction; 32; additional; injected; react; form; combustible; gas; mixture; 60; consisting; steam; preferably; coal-to-steam; weight; ratio; approximately; reduction zone; coal gasifier; combustion products; combustion zone; combustible gas; gasification process; coal gas; combustion product; two-stage coal; weight ratio; near stoichiometric; entrained flow; flow coal; stoichiometric air; stage coal; /48/

Citation Formats

Tanca, Michael C. Method of operating a two-stage coal gasifier. United States: N. p., 1982. Web.
Tanca, Michael C. Method of operating a two-stage coal gasifier. United States.
Tanca, Michael C. Fri . "Method of operating a two-stage coal gasifier". United States. https://www.osti.gov/servlets/purl/864293.
@article{osti_864293,
title = {Method of operating a two-stage coal gasifier},
author = {Tanca, Michael C.},
abstractNote = {A method of operating an entrained flow coal gasifier (10) via a two-stage gasification process. A portion of the coal (18) to be gasified is combusted in a combustion zone (30) with near stoichiometric air to generate combustion products. The combustion products are conveyed from the combustion zone into a reduction zone (32) wherein additional coal is injected into the combustion products to react with the combustion products to form a combustible gas. The additional coal is injected into the reduction zone as a mixture (60) consisting of coal and steam, preferably with a coal-to-steam weight ratio of approximately ten to one.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1982},
month = {1}
}

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