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:
-
- Tariffville, CT
- Issue Date:
- OSTI Identifier:
- 864293
- Patent Number(s):
- 4343627
- Assignee:
- Combustion Engineering, Inc. (Windsor, CT)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10J - PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- 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 = {Fri Jan 01 00:00:00 EST 1982},
month = {Fri Jan 01 00:00:00 EST 1982}
}
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