Integrated catalytic coal devolatilization and steam gasification process
Hydrocarbon liquids and a methane-containing gas are produced from carbonaceous feed solids by contacting the solids with a mixture of gases containing carbon monoxide and hydrogen in a devolatilization zone at a relatively low temperature in the presence of a carbon-alkali metal catalyst. The devolatilization zone effluent is treated to condense out hydrocarbon liquids and at least a portion of the remaining methane-rich gas is steam reformed to produce the carbon monoxide and hydrogen with which the carbonaceous feed solids are contacted in the devolatilization zone. The char produced in the devolatilization zone is reacted with steam in a gasification zone under gasification conditions in the presence of a carbon-alkali metal catalyst and the resultant raw product gas is treated to recover a methane-containing gas.
- Assignee:
- Exxon Research And Engineering Co
- Patent Number(s):
- US 4292048
- OSTI ID:
- 5787920
- Country of Publication:
- United States
- Language:
- English
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Integrated catalytic gasification process. [gasification of coal and similar carbonaceous feed materials carried out in presence of a carbon--alkali metal catalyst]
Related Subjects
010404* -- Coal
Lignite
& Peat-- Gasification
090121 -- Hydrocarbon Fuels-- Chemical Synthesis-- (1976-1989)
10 SYNTHETIC FUELS
ALKALI METALS
ALKANES
CARBON
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CARBONACEOUS MATERIALS
CATALYSTS
CHALCOGENIDES
CHEMICAL REACTIONS
COAL GASIFICATION
DEVOLATILIZATION
ELEMENTS
FLUIDIZED BED REACTORS
FLUIDS
FUEL DISPERSION REACTORS
GASIFICATION
HOMOGENEOUS REACTORS
HYDROCARBONS
HYDROGEN
MATERIALS
METALS
METHANE
NONMETALS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
REACTORS
REFORMER PROCESSES
STEAM REFORMER PROCESSES
THERMOCHEMICAL PROCESSES