Hot water bitumen extraction process

Details Hot water bitumen extraction process Hot water bitumen extraction process

C - Chemistry, Metallurgy

10

G

196/21

C10G 1/04 (2006.01)

Patent

CA 1293944

ABSTRACT OF THE DISCLOSURE 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 immiscible 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.

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