Solar heated oil shale pyrolysis process

Details Solar heated oil shale pyrolysis process Solar heated oil shale pyrolysis process

1984-07-23

1986-04-15

Kratz, Peter

Mineral oils: processes and products

Products and compositions

Lubricating oils

48197R, 48DIG9, C10B 5306

Patent

active

045825904

ABSTRACT:
A bed (76, 202) of oil shale particles (10) are pyrolyzed in a retort (70, 200) by means of a heated carrier gas stream passing through a central conduit (54, 202) within the bed (76, 202) and then upwardly through a fixed bed (76) or fluidized bed (202) of the shale. The shale is subjected to pyrolysis and evolves kerogen liquid, thermally and pyrolyzed liquids and gases which enter the carrier gas to form a pyrolysis gas. The liquid pyrolysis oil is separated from the pyrolysis gas ion separator (94, 224) and a portion of the separated gas is recycled to a solar heat exchanger (50, 204) and heated to a temperature of at least 350.degree. C. before being fed to the central conduit (54, 202).

REFERENCES:
patent: 2760920 (1956-08-01), Olsen
patent: 3574087 (1971-04-01), Bergen
patent: 3868823 (1975-03-01), Russell, Jr. et al.
patent: 3993458 (1976-11-01), Antal, Jr.
patent: 4149856 (1979-04-01), Keller
patent: 4229184 (1980-10-01), Gregg
patent: 4290779 (1981-09-01), Qader et al.
patent: 4415339 (1983-11-01), Aiman et al.
"Coal Gasification Using Solar Energy", Solar Energy, vol. 30, No. 5, pp. 443-440, 1983, V. K. Mathur.

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