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:
Oct. 11, 1983
Filed:
Feb. 01, 1982
Francis V Hanson, Salt Lake City, UT (US);
Jan D Miller, Salt Lake City, UT (US);
Alex G Oblad, Salt Lake City, UT (US);
University of Utah, Salt Lake City, UT (US);
Abstract
A combination physical separation process and thermal fluidized bed process for recovering products from tar sands. The process includes initially separating a portion of the sand from the tar sand through a physical separation process, yielding a bitumen-rich concentrate. The bitumen-rich concentrate is introduced into a heated fluidized bed and products are recovered and distilled into their respective fractions. A coked sand is removed from the fluidized bed and placed into a combustor where the carbonaceous residue on the sand is burned to produce a hot burnt sand, a portion of which may be recycled to provide heat to the bitumen-rich concentrate in the fluidized bed. The coked sand and a certain fraction of the distilled products may be recycled to the physical separation process to improve the separation efficiency thereof.