Extraction of oil shales and tar sands
Patent
·
OSTI ID:6443181
A invention is described relating to the extractiion of oil shales and tar sands by using a solvent under supercritical conditions at a temperature within 200/sup 0/C or its critical temperature in order to effect extraction of kerogen from the sand or shale. In the case of shales considerable heat needs to be applied to the shale before effective extraction can occur and extraction in this case may be carried out at a temperature within the range of 370/sup 0/ to 450/sup 0/C.
- Assignee:
- Coal Industry (Patents) Ltd.
- Patent Number(s):
- US 4108760
- OSTI ID:
- 6443181
- 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
BITUMENS
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
ENERGY SOURCES
EXTRACTION
FOSSIL FUELS
FUELS
HIGH TEMPERATURE
MINERAL OILS
OIL SANDS
OIL SHALES
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
SEPARATION PROCESSES
SHALE OIL
SOLVENT EXTRACTION
SYNTHETIC FUELS
SYNTHETIC PETROLEUM
TAR
040402* -- Oil Shales & Tar Sands-- Surface Methods
BITUMENS
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
ENERGY SOURCES
EXTRACTION
FOSSIL FUELS
FUELS
HIGH TEMPERATURE
MINERAL OILS
OIL SANDS
OIL SHALES
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
SEPARATION PROCESSES
SHALE OIL
SOLVENT EXTRACTION
SYNTHETIC FUELS
SYNTHETIC PETROLEUM
TAR