Process for the recovery of hydrocarbons from oil shale

Details Process for the recovery of hydrocarbons from oil shale Process for the recovery of hydrocarbons from oil shale

1982-06-11

1984-05-22

Novosad, Stephen J.

Wells

Processes

Heating, cooling or insulating

208 11LE, 208 11R, C10G 104, E21B 4324

Patent

active

044495862

ABSTRACT:
A process for the recovery of hydrocarbonaceous oil from oil shale is disclosed. The process comprises: (a) heating the shale in the presence of a gas comprising hydrogen sulfide at subcritical conditions of said gas including a temperature from about 650.degree. F. to about 825.degree. F. to produce a solvent extractable material and to liberate at least a first portion of the hydrocarbon contained therein; and (b) contacting the resulting solvent extractable material with a normally-liquid solvent at subcritical, reflux conditions of said solvent to liberate at least a second portion of the hydrocarbon contained in the solvent extractable material.

REFERENCES:
patent: 3241611 (1966-03-01), Dougan
patent: 3358756 (1967-12-01), Vogel
patent: 3474863 (1969-10-01), Deans et al.
patent: 3515213 (1970-06-01), Prats
patent: 3528501 (1970-09-01), Parker
patent: 3598182 (1971-08-01), Justheim
patent: 3695354 (1972-10-01), Dilgren et al.
patent: 4158638 (1979-06-01), Tsai
patent: 4390411 (1983-06-01), Scinta et al.
"Nonretorting Method Recovers Shale Organics," Chemical and Engineering News, (Sep. 14, 1981), 54.

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