Method for gasifying solid fuels
Patent
·
OSTI ID:7010449
This patent describes a process of converting solid carbonaceous materials into valuable volatile fuels by means of the heat generated by partial combustion of said carbonaceous materials in a fluidized bed of solids. The process involves passing finely divided solid carbonaceous material through a circuit comprising at least two conversion zones, maintaining said material as a mass of fluidized solids in said conversion zones at elevated temperatures suitable for the production of volatile conversion products, and maintaining substantial temperature gradients between said conversion zones. A portion of said material is subjected to combustion in at least one of said conversion zones at a temperature of about 1600/sup 0/-2500/sup 0/F. This supplies the heat required in said conversion zone by which the gasification reaction is effected by circulating finely divided solids highly heated by the heat generated by said combustion. The process continues by adding fluidizable extraneous solid particles produced outside said combustion-conversion zone and consisting of solid noncombustible materials to said zone to maintain the concentration of carbon. Said noncombustible materials are circulated together with said highly heated solids through said conversion zones.
- Assignee:
- Standard Oil Development Co., DE
- Patent Number(s):
- US 2622973
- OSTI ID:
- 7010449
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
01 COAL, LIGNITE, AND PEAT
010404* -- Coal
Lignite
& Peat-- Gasification
090121 -- Hydrocarbon Fuels-- Chemical Synthesis-- (1976-1989)
10 SYNTHETIC FUELS
CARBON
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CARBONACEOUS MATERIALS
CHALCOGENIDES
DESIGN
ELEMENTS
FLUIDIZED BEDS
FLUIDS
FUELS
FUNCTIONAL MODELS
GAS GENERATORS
GASES
GASIFICATION
HYDROGEN FUELS
MATERIALS
NONMETALS
OPERATION
OXIDES
OXYGEN COMPOUNDS
PROCESS DEVELOPMENT UNITS
PRODUCTION
SYNTHESIS GAS
SYNTHETIC FUELS
THERMOCHEMICAL PROCESSES
010404* -- Coal
Lignite
& Peat-- Gasification
090121 -- Hydrocarbon Fuels-- Chemical Synthesis-- (1976-1989)
10 SYNTHETIC FUELS
CARBON
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CARBONACEOUS MATERIALS
CHALCOGENIDES
DESIGN
ELEMENTS
FLUIDIZED BEDS
FLUIDS
FUELS
FUNCTIONAL MODELS
GAS GENERATORS
GASES
GASIFICATION
HYDROGEN FUELS
MATERIALS
NONMETALS
OPERATION
OXIDES
OXYGEN COMPOUNDS
PROCESS DEVELOPMENT UNITS
PRODUCTION
SYNTHESIS GAS
SYNTHETIC FUELS
THERMOCHEMICAL PROCESSES