Production of hydrocarbon gases from oil shale. [low molecular weight paraffinic hydrocarbon gases formed from preheated and prehydrogenated organic hydrocarbon portion of oil shale]
Patent
·
OSTI ID:7358353
The oil shale is gradually preheated in a preheat and prehydrogenation zone to a temperature of about 700/sup 0/ to about 950/sup 0/F in the presence of hydrogen-rich gas without substantial production of liquid or gas in the preheat and prehydrogenation zone. Then the preheated and prehydrogenated oil shale is treated in a hydrogasification zone at a temperature of about 1,200/sup 0/ to about 1,500/sup 0/F in the presence of hydrogen-rich gas to form predominately low molecular weight paraffinic hydrocarbon gases from the preheated and prehydrogenated organic hydrocarbon portion of the oil shale. The hydrogen-rich gas may be passed countercurrent in thermal exchange relation to the spent shale to recover heat from the spent shale heating the hydrogen-rich gas for passage countercurrent and in thermal exchange relation to fresh oil shale in the preheat and prehydrogenation zone. The improvement of this process lies in the exceptionally high conversion of the organic component of oil shale to products of high value having high content of low molecular weight paraffinic hydrocarbon gases. (auth)
- Assignee:
- American Gas Association, Inc.
- Patent Number(s):
- US 3929615
- OSTI ID:
- 7358353
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
04 OIL SHALES AND TAR SANDS
040402* -- Oil Shales & Tar Sands-- Surface Methods
090121 -- Hydrocarbon Fuels-- Chemical Synthesis-- (1976-1989)
10 SYNTHETIC FUELS
ALKANES
BITUMINOUS MATERIALS
BUTANE
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
COUNTER CURRENT
CRYOGENIC FLUIDS
ENERGY SOURCES
ENERGY TRANSFER
ETHANE
FLUIDS
FOSSIL FUELS
FUELS
GASIFICATION
HEAT TRANSFER
HIGH TEMPERATURE
HYDROCARBONS
HYDROGENATION
METAMORPHIC ROCKS
METHANE
OIL SHALES
ORGANIC COMPOUNDS
PRODUCTION
PROPANE
ROCKS
SHALES
SPENT SHALES
040402* -- Oil Shales & Tar Sands-- Surface Methods
090121 -- Hydrocarbon Fuels-- Chemical Synthesis-- (1976-1989)
10 SYNTHETIC FUELS
ALKANES
BITUMINOUS MATERIALS
BUTANE
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
COUNTER CURRENT
CRYOGENIC FLUIDS
ENERGY SOURCES
ENERGY TRANSFER
ETHANE
FLUIDS
FOSSIL FUELS
FUELS
GASIFICATION
HEAT TRANSFER
HIGH TEMPERATURE
HYDROCARBONS
HYDROGENATION
METAMORPHIC ROCKS
METHANE
OIL SHALES
ORGANIC COMPOUNDS
PRODUCTION
PROPANE
ROCKS
SHALES
SPENT SHALES