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;
Barry Bara, Edmonton, CA;
Sukhamoy Sarkar, Edmonton, CA;
Rodney Denton, Fayetteville, NC (US);
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 process for recovery of hydrocarbon diluent from tailings produced in a bitumen froth treatment plant comprises introducing the tailings into a vacuum flash vessel maintained at a sufficiently low sub-atmospheric pressure to vaporize the major portion of the contained diluent and some water. The residual then pool near the bottom of the flash vessel. Steam is then introduced into the tailings pool for vaporizing residual diluent and some water.