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Process for recovery of bitumen from a bituminous froth

Patent ·
OSTI ID:6886173
;
A method for recovery of bitumen from bituminous froth is described,having particular application in hot water separation of tar sands. Comminuted tar sand is slurried in hot water, followed by gravity separation to isolate a bituminous froth, containing water and mineral matter. The bituminous froth is diluted with a liquid hydrocarbon solvent and sent through to a 2-stage centrifugation to recover the substantially water- and mineral-free bitumen. In this process, the dilution of bituminous froth with liquid hydrocarbon solvent is staged such that no more than about 90% of the total hydrocarbon solvent is added to the bituminous froth prior to the first centrifuging stage and the remaining hydrocarbon solvent is added prior to the second centrifuging stage. (9 claims)
Assignee:
Shell Canada Ltd.
Patent Number(s):
US 4035282
OSTI ID:
6886173
Country of Publication:
United States
Language:
English

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Related Subjects

04 OIL SHALES AND TAR SANDS
040402* -- Oil Shales & Tar Sands-- Surface Methods
040600 -- Oil Shales & Tar Sands-- Products & By-Products
BITUMENS
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
ENERGY SOURCES
FLUID INJECTION PROCESSES
FOSSIL FUELS
FUELS
HOT-WATER PROCESSES
MATERIALS
OIL SANDS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PROCESSING
RECOVERY
SEPARATION PROCESSES
TAR