Oil shale retorting method and apparatus

Details Oil shale retorting method and apparatus Oil shale retorting method and apparatus

1980-11-19

1983-08-02

Gantz, Delbert E.

Mineral oils: processes and products

Products and compositions

Lubricating oils

201 31, 202108, 202121, C10G 100, C10B 4910

Patent

active

043964907

ABSTRACT:
Disclosed is an improved method for the retorting of oil shale comprising passing feed comprising oil shale to a contacting zone wherein the feed oil shale is contacted with heat transfer medium to heat said shale to retorting temperature. Retorting of the feed oil shale is substantially effected to form fluid material having heating value and forming partially spent oil shale comprising inorganic and carbonaceous material. At least a portion of the partially spent oil shale is passed to a combustion zone wherein the partially spent oil shale is contacted with oxidizing gas comprising oxygen to substantially combust carbonaceous material and forming spent oil shale. At least a portion of the spent shale is passed to a cooling zone to remove heat from the spent shale and at least a portion of the spent shale from the cooling zone is recycled to the contacting zone.

REFERENCES:
patent: 3597347 (1971-08-01), Ellington, Jr.
patent: 3655518 (1972-04-01), Schmalfeld et al.
patent: 3703442 (1972-11-01), Rammler et al.

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