Mineral oils: processes and products – By treatment of solid mineral – e.g. – coal liquefaction – etc. – Including contact of feed with liquid produced in the...
Patent
1990-04-05
1991-05-07
McFarlane, Anthony
Mineral oils: processes and products
By treatment of solid mineral, e.g., coal liquefaction, etc.
Including contact of feed with liquid produced in the...
208390, 208400, 208424, 208428, 208434, 208435, C10G 100
Patent
active
050134280
ABSTRACT:
Enhanced recovery of oil from an oil-containing particulate shale sludge is achieved by contacting the sludge with a light hydrocarbon solvent fraction, obtained from the processing of oil derived from the shale, in the presence of water to form an oil-solvent liquid phase which is separated from an aqueous phase containing oil-depleted shale. The oil-solvent liquid phase when introduced into a slurry of product oil and particulate contained within a shale retort provides several advantages, including lowering the viscosity of the product oil and enhanced separation of the product oil from the particulate shale.
REFERENCES:
patent: 3228869 (1966-01-01), Irish
patent: 4057486 (1977-11-01), Meadus et al.
patent: 4376693 (1983-03-01), Wanzel
patent: 4773988 (1988-09-01), Delaney
Berndt Mitchell J.
Christolini Ben A.
Howe Steven E.
Le Kimanh T.
De Larvin Clark E.
McFarlane Anthony
Phan Nhat
Union Oil Company of California
Wirzbicki Gregory F.
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