Process for recovery of bitumen from tar sands
Patent
·
OSTI ID:5995196
Bitumen contained in tar sands is extracted in a primary extraction step which produces a bitumen-containing froth. A hydrogen donor diluent solvent is added to the froth, and the froth-solvent mix is subjected to a desalting operation. A bitumen-solvent product from the desalting step is subjected to a coking operation. In one embodiment, a delayed coker is used, and a gas oil fraction from the coker overhead vapors in hydrogenated and used as the donor solvent in the desalting step.
- Assignee:
- Conoco Inc
- Patent Number(s):
- US 4385982
- OSTI ID:
- 5995196
- 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
BITUMENS
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
CARBONIZATION
CHEMICAL REACTIONS
COKING
DECOMPOSITION
ENERGY SOURCES
EXTRACTION
FOSSIL FUELS
FUELS
HYDROGEN TRANSFER
MATERIALS
OIL SANDS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
RECOVERY
SEPARATION PROCESSES
SOLVENT EXTRACTION
SOLVENTS
TAR
040402* -- Oil Shales & Tar Sands-- Surface Methods
BITUMENS
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
CARBONIZATION
CHEMICAL REACTIONS
COKING
DECOMPOSITION
ENERGY SOURCES
EXTRACTION
FOSSIL FUELS
FUELS
HYDROGEN TRANSFER
MATERIALS
OIL SANDS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
RECOVERY
SEPARATION PROCESSES
SOLVENT EXTRACTION
SOLVENTS
TAR