Oil shale retorting method and apparatus

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

1980-11-19

1983-03-22

Gantz, Delbert E.

Mineral oils: processes and products

Products and compositions

Lubricating oils

208 8R, 201 12, 201 31, C10G 100

Patent

active

043774652

ABSTRACT:
Disclosed is an improved method and apparatus for the retorting of oil shale and the formation of spent oil shale having improved cementation properties. The improved method comprises 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. The feed oil shale is substantially retorted to form fluid material having heating value and forming partially spent oil shale containing 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 and steam to substantially combust carbonaceous material forming spent oil shale having improved cementation properties.

REFERENCES:
patent: 2844521 (1958-07-01), Jahnig
patent: 3655518 (1972-04-01), Schmalfeld et al.
patent: 4105502 (1978-08-01), Choi

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