Improved solvent extraction recovery of shale oil. [DOE patent application]
Patent
·
OSTI ID:5319235
An improved process for solvent extraction of organic matter from shale by two extraction steps in sequence. The extraction steps are: (1) treating a kerogen-containing shale with a solvent system comprising a combination of water and an alcohol at a temperature of about 375 to 425/sup 0/C; and (2) treating the product of (1) with a solvent system comprising a combination of an alcohol and another organic solvent at an elevated temperature, but not above about 425/sup 0/C. The organic matter is recovered by separating the liquid which results from step (2) from the shale solids.
- Assignee:
- Dept. of Energy
- Patent Number(s):
- None
- Application Number:
- ON: DE82013590
- OSTI ID:
- 5319235
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
04 OIL SHALES AND TAR SANDS
040400 -- Oil Shales & Tar Sands-- Oil Production
Recovery
& Refining
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400105* -- Separation Procedures
ALCOHOLS
AROMATICS
BENZENE
BITUMENS
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
ENERGY SOURCES
ETHANOL
EXTRACTION
FOSSIL FUELS
FUELS
HIGH TEMPERATURE
HYDROCARBONS
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
KEROGEN
MATERIALS
METHANOL
MINERAL OILS
OIL SHALES
OILS
ORGANIC COMPOUNDS
ORGANIC MATTER
ORGANIC SOLVENTS
OTHER ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
RECOVERY
SEPARATION PROCESSES
SHALE OIL
SOLVENT EXTRACTION
SOLVENT PROPERTIES
SOLVENTS
TAR
TEMPERATURE DEPENDENCE
WATER
040400 -- Oil Shales & Tar Sands-- Oil Production
Recovery
& Refining
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400105* -- Separation Procedures
ALCOHOLS
AROMATICS
BENZENE
BITUMENS
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
ENERGY SOURCES
ETHANOL
EXTRACTION
FOSSIL FUELS
FUELS
HIGH TEMPERATURE
HYDROCARBONS
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
KEROGEN
MATERIALS
METHANOL
MINERAL OILS
OIL SHALES
OILS
ORGANIC COMPOUNDS
ORGANIC MATTER
ORGANIC SOLVENTS
OTHER ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
RECOVERY
SEPARATION PROCESSES
SHALE OIL
SOLVENT EXTRACTION
SOLVENT PROPERTIES
SOLVENTS
TAR
TEMPERATURE DEPENDENCE
WATER