CLOSED LOOP SOLVENT EXTRACTION PROCESS FOR OIL SANDS

The present invention is directed to a method comprising contacting an oil sand with a suitable solvent to generate a solvated oil sand slurry; separating solvent-diluted bitumen from the solvated oil sand slurry to generate (a) a solvent-diluted bitumen and (b) a slurry with increased solids concen...

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Bibliographische Detailangaben
Hauptverfasser: KOMISHKE BRADLEY DEAN, IN' T VEEN BERNARDUS CORNELIS MARIA, GILES STEVEN PAUL, BLACKBOURN ROBERT LAWRENCE, BOTT REINHARD ALFRED, LING YICHENG, PLOEMEN INGMAR HUBERTUS JOSEPHINA
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The present invention is directed to a method comprising contacting an oil sand with a suitable solvent to generate a solvated oil sand slurry; separating solvent-diluted bitumen from the solvated oil sand slurry to generate (a) a solvent-diluted bitumen and (b) a slurry with increased solids concentration; and filtering the slurry with increased solids concentration. The method of the present invention may be used to produce a low ash bitumen product and dry tailings from oil sands.