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Improved solvent recovery of Eastern shale oil

Patent ·
OSTI ID:6884101
;
An improved process is disclosed for solvent extraction of organic matter from Eastern shale by two extraction steps in sequence. The extraction steps are: (a) treating an Eastern kerogen-containing shale with a solvent system comprising a combination of water and tetralin at a temperature of about 375/sup 0/ to 425/sup 0/C; and (b) treating the product of (a) 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 (b) from the shale solids.
Assignee:
Dept. of Energy
Patent Number(s):
None
Application Number:
ON: DE84011110
OSTI ID:
6884101
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
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
ENERGY SOURCES
EXTRACTION
FOSSIL FUELS
FUELS
HIGH TEMPERATURE
KEROGEN
MATERIALS
MINERAL OILS
OIL SHALES
OILS
ORGANIC COMPOUNDS
ORGANIC MATTER
ORGANIC SOLVENTS
OTHER ORGANIC COMPOUNDS
SEPARATION PROCESSES
SHALE OIL
SOLVENT EXTRACTION
SOLVENTS