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:
Mar. 19, 2002
Filed:
May. 21, 1999
Applicant:
Inventors:
Wayne Brown, Edmonton, CA;
Michelle Portwood, Fort McMurray, CA;
Fran King, Fort McMurray, CA;
Barry Bara, Edmonton, CA;
Michael Wagner, Edmonton, CA;
Assignee:
AEC Oil Sands, L.P., , CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10G 1/04 ;
U.S. Cl.
CPC ...
C10G 1/04 ;
Abstract
A method for recovery of hydrocarbon diluent from tailings produced in a bitumen froth treatment plant comprises introducing the tailings into a steam stripping vessel maintained at near atmospheric pressure, said vessel having a plurality of interior, vertically spaced shed decks, and distributing the tailings over said shed decks. Steam is introduced below the shed decks for vaporizing the major portion of the contained diluent and some water.