Mineral oils: processes and products – Products and compositions – Lubricating oils
Patent
1981-07-21
1984-09-25
Gantz, Delbert E.
Mineral oils: processes and products
Products and compositions
Lubricating oils
208251R, 208177, 208 8R, 210806, C10G 100, C10G 3110
Patent
active
044734611
ABSTRACT:
A centrifugal drying and dedusting process is provided to dedust heavy oil derived from solid hydrocarbon-containing material such as oil shale, coal or tar sand. In the process, heavy oil laden with particulates derived from the solid hydrocarbon-containing material is centrifuged into a dedusted stream of heavy oil and a dust laden centrifuge sludge. The dedusted stream of oil can be further dedusted in a desalter, after being first mixed with fresh water, to form a purified, highly dedusted, effluent stream of heavy oil. Dust laden water from the desalter is centrifuged into a dedusted stream of water and a dewatered centrifuge sludge. The dedusted stream of water is recycled upstream of the desalter and mixed with the influent oil stream. Desirably, the centrifuges sludges are mixed, heated, dried and separated into another dedusted stream of oil and a powdery, dust-enriched residual stream which can be combusted in a lift pipe for use as heat carrier material in the dryer and retort.
REFERENCES:
patent: 3798153 (1974-03-01), Arndt et al.
patent: 3923643 (1975-12-01), Lewis et al.
patent: 4040958 (1977-08-01), Rammler
patent: 4124495 (1978-11-01), Bazell
patent: 4199432 (1980-04-01), Tamm et al.
Congram, G. E., Refiners Zero in on Better Desalting, Oil and Gas Journal, pp. 153-154.
Waterman, L. C., Crude Desalting: Why and How, Hydrocarbon Processing and Petroleum Refiner, (Feb. 1965).
Miller Paul B.
Thacker Milton B.
Caldarola Glenn A.
Gantz Delbert E.
Magidson William H.
McClain William T.
Standard Oil Company (Indiana)
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