Mineral oils: processes and products – Products and compositions – Lubricating oils
Patent
1983-10-12
1985-10-01
Gantz, D. E.
Mineral oils: processes and products
Products and compositions
Lubricating oils
208177, C10G 100, C10G 2116, C10G 2106
Patent
active
045444773
ABSTRACT:
A process is provided to produce and dedust oil from oil shale and other types of solid hydrocarbon-containing material. In the process, raw oil shale or other solid hydrocarbon-containing material is retorted, preferably with solid heat carrier material, to liberate an effluent product stream of hydrocarbons containing entrained particulates of dust derived from the oil shale or other solid hydrocarbon-containing material. A fraction of oil containing most of the dust is separated from the effluent product stream and fed to one or more dedusters. The dust-laden oil is dissolved in a special dedusting solvent which contains both polar and non-polar solvents. In the deduster, the dissolved oil is separated into a dedusted stream of oil and solvents and a residual stream of dust-laden sludge. Solvents are recovered from the dedusted stream as well as the sludge. The recovered solvents are recycled to the deduster for use in dedusting the oil. The sludge is preferably dried and combusted for use as part of the solid heat carrier material in the retort.
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Caldarola Glenn A.
Gantz D. E.
Gulf Oil Corporation
Magidson William H.
McClain William T.
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