The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 15, 1983
Filed:
Nov. 19, 1980
Earl D York, Englewood, CO (US);
Standard Oil Company (Indiana), Chicago, IL (US);
Abstract
Disclosed is an improved method and apparatus for the recovery of hydrocarbons from tar sands, oil shale or oil containing diatomaceous earth. The method comprises passing feed comprising tar sands, oil shale or oil containing diatomaceous earth to a contacting zone wherein the feed is contacted with heat transfer medium in a screw mixing zone to heat said feed to near recovery temperature wherein the feed is at least partially heated to form fluid material having heating value and forming partially spent inorganic matter associated with carbonaceous material; passing a mixture comprising substantially all of the fluid material and partially spent inorganic matter associated with carbonaceous material from the contacting zone to a separation zone wherein solids are partially separated from the fluid material; and recovering fluid material.