Mineral oils: processes and products – Products and compositions – Lubricating oils
Patent
1974-01-18
1976-02-17
Gantz, Delbert E.
Mineral oils: processes and products
Products and compositions
Lubricating oils
201 16, 201 21, C10G 102, C10B 4706
Patent
active
039390578
ABSTRACT:
A process and apparatus for decomposing kerogen and recovering oil, high BTU gas and energy for the process wherein a crushed oil shale is fed to a rotary preheater (300.degree. to 350.degree. F.) hence into a rotary retort (850.degree.-1050.degree. F.) where the kerogen is decomposed and the oil evaporated, removed and condensed. From the retort the crushed shale goes to a hopper where any residual oil is stripped out by super heated steam leaving a char on the crushed shale. The stripped shale is fed into a furnace wherein the char is burned to provide heat for the process. To supplement the char and provide enough BTU's for the process, it is necessary to add a small amount of coal to the feed to the process. The hot gases from the furnace first pass into contact with the rotary retort and hence indirectly heat the oil shale in the retort. The hot furnace gases (or a portion thereof) then pass into direct contact with the crushed oil shale feed in the preheater.
REFERENCES:
patent: 3093571 (1963-06-01), Fish et al.
patent: 3129164 (1964-04-01), Cameron
patent: 3336104 (1967-08-01), Miller
patent: 3475319 (1969-10-01), MacLaren
patent: 3496094 (1970-02-01), Smith
patent: 3573197 (1971-03-01), Gessner
patent: 3597347 (1971-08-01), Ellington
Gantz Delbert E.
Hellwege James W.
Johnson Kenneth H.
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