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:
Dec. 29, 2015
Filed:
Mar. 20, 2012
Ingmar Hubertus Josephina Ploemen, Amsterdam, NL;
Ronald Jan Schoonebeek, Amsterdam, NL;
Bernardus Cornelis Maria In't Veen, Amsterdam, NL;
Ingmar Hubertus Josephina Ploemen, Amsterdam, NL;
Ronald Jan Schoonebeek, Amsterdam, NL;
Bernardus Cornelis Maria In't Veen, Amsterdam, NL;
Shell Oil Company, Houston, TX (US);
Abstract
The present invention is a method for extracting bitumen from an oil sand feed stream including at least the steps of: (a) providing an oil sand feed stream; (b) contacting the oil sand feed stream with a liquid comprising an aliphatic hydrocarbon solvent thereby obtaining a solvent-diluted oil sand slurry; (c) depositing the solvent-diluted oil sand slurry as a filter cake on a filter medium and filtering the solvent-diluted oil sand slurry, thereby obtaining a solids-enriched stream and a filtrate, wherein during the filtering the pressure above the filter cake is at least 1.7 bara; and (d) lowering the pressure of the solids-enriched stream to below 1.2 bara.