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Title: Synthesis gas from slurries of solid carbonaceous fuels

Abstract

Synthesis gas, fuel gas, or reducing gas is produced by the noncatalytic partial oxidation of a slurry of ash-containing solid carbonaceous fuel in a liquid carrier with a free-oxygen containing gas in the free-flow reaction zone of a refractory lined gas generator at an autogenous temperature in the range of about 2350/sup 0/ F. to 2900/sup 0/ F. so that about 75 to 95 weight percent of the carbon in the fuel feed to the reaction zone is converted into carbon oxides. The hot effluent gas stream from the reaction zone containing entrained particulate carbon, unconverted solid carbonaceous fuel, and molten slag is passed through a free-flow radiant cooler where it is contacted by and provides the heat to vaporize an aqueous solution of catalyst consisting of alkali metal and/or alkaline earth metal compound in water. In the presence of the catalyst, H/sub 2/O and at least a portion of the particulate carbon and the carbon in the unconverted solid carbonaceous fuel are reacted together at a controlled temperature to produce additional H/sub 2/ and CO /SUB x/ . The hot effluent gas stream enters the radiant cooler at a temperature in the range of about 2800/sup 0/ F.-2300/sup 0/more » F. and leaves at a temperature in the range of about 1350/sup 0/ F.-1600/sup 0/ F. Further, the molten slag in the effluent gas stream may be fluxed with the alkali metal and/or alkaline earth metal compound to facilitate separation of the slag from the effluent gas stream.« less

Inventors:
;
Publication Date:
OSTI Identifier:
6616800
Patent Number(s):
US 4436531
Assignee:
Texaco Dev. Corp.
Resource Type:
Patent
Resource Relation:
Patent File Date: Filed date 27 Aug 1982; Other Information: PAT-APPL-412437
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; ALKALI METAL COMPOUNDS; CATALYTIC EFFECTS; ALKALINE EARTH METAL COMPOUNDS; COAL GASIFICATION; PARTIAL OXIDATION PROCESSES; FUEL SLURRIES; GASIFICATION; TEXACO GASIFICATION PROCESS; CATALYSTS; ALKALI METALS; AQUEOUS SOLUTIONS; ASH CONTENT; CARBONACEOUS MATERIALS; SLAGS; SYNTHESIS GAS; VERY HIGH TEMPERATURE; WATER; CHEMICAL REACTIONS; DISPERSIONS; ELEMENTS; FLUIDS; FUELS; GASES; HYDROGEN COMPOUNDS; MATERIALS; METALS; MIXTURES; OXYGEN COMPOUNDS; SLURRIES; SOLUTIONS; SUSPENSIONS; THERMOCHEMICAL PROCESSES; 010404* - Coal, Lignite, & Peat- Gasification

Citation Formats

Estabrook, L E, and Suggitt, R M. Synthesis gas from slurries of solid carbonaceous fuels. United States: N. p., 1984. Web.
Estabrook, L E, & Suggitt, R M. Synthesis gas from slurries of solid carbonaceous fuels. United States.
Estabrook, L E, and Suggitt, R M. Tue . "Synthesis gas from slurries of solid carbonaceous fuels". United States.
@article{osti_6616800,
title = {Synthesis gas from slurries of solid carbonaceous fuels},
author = {Estabrook, L E and Suggitt, R M},
abstractNote = {Synthesis gas, fuel gas, or reducing gas is produced by the noncatalytic partial oxidation of a slurry of ash-containing solid carbonaceous fuel in a liquid carrier with a free-oxygen containing gas in the free-flow reaction zone of a refractory lined gas generator at an autogenous temperature in the range of about 2350/sup 0/ F. to 2900/sup 0/ F. so that about 75 to 95 weight percent of the carbon in the fuel feed to the reaction zone is converted into carbon oxides. The hot effluent gas stream from the reaction zone containing entrained particulate carbon, unconverted solid carbonaceous fuel, and molten slag is passed through a free-flow radiant cooler where it is contacted by and provides the heat to vaporize an aqueous solution of catalyst consisting of alkali metal and/or alkaline earth metal compound in water. In the presence of the catalyst, H/sub 2/O and at least a portion of the particulate carbon and the carbon in the unconverted solid carbonaceous fuel are reacted together at a controlled temperature to produce additional H/sub 2/ and CO /SUB x/ . The hot effluent gas stream enters the radiant cooler at a temperature in the range of about 2800/sup 0/ F.-2300/sup 0/ F. and leaves at a temperature in the range of about 1350/sup 0/ F.-1600/sup 0/ F. Further, the molten slag in the effluent gas stream may be fluxed with the alkali metal and/or alkaline earth metal compound to facilitate separation of the slag from the effluent gas stream.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1984},
month = {3}
}