Hot water bitumen extraction process

Details Hot water bitumen extraction process Hot water bitumen extraction process

1988-02-18

1989-10-24

Sneed, H. M.

Mineral oils: processes and products

Tar sand treatment with liquid

208 87, 208 89, C10G 100

Patent

active

048759988

ABSTRACT:
A method and apparatus for a combined solvent and hot water extraction of bitumen oils from tar-sands ore. The crushed tar-sands ore is conditioned in hot water while excluding air, after which oversized and inert rocks are removed by screening. The bitumen content of the resulting slurry is then extracted with a water immisible hydrocarbon solvent of low density to form a solution of bitumen oils in solvent or bitumen extract phase, a middle water phase and a lower spent wet solids phase. Each of these phases is thereafter processed to produce product bitumen oils and to recover solvent and water for reuse within the process. The product bitumen oils are further processed to separate the fines, and may be refined and separated into synthetic crude oil and asphaltenes residue components. The asphaltenes residue component may be burned in a fluidized bed boiler to provide process heat and electrical power for the method.

REFERENCES:
patent: 3725245 (1973-04-01), Woodle
patent: 4405446 (1983-09-01), Kluyer
patent: 4460452 (1984-07-01), Johnson et al.

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