Recovery of oil from tar sands

Details Recovery of oil from tar sands Recovery of oil from tar sands

C - Chemistry, Metallurgy

10

G

C10G 1/04 (2006.01)

Patent

CA 2053016

ABSTRACT OF THE DISCLOSURE A process of recovering oil from tar sands by subjecting the tar sands to aqueous extraction to produce a froth layer containing bitumen, water and solids including sand and clay having adhered organic matter. The froth layer without substantial removal of the solids is dried and then pyrolyzed in a fluid coker or retort to produce oil product. Pyrolysis of the froth layer without substantial removal of the fine clay solids reduces the volume of aqueous tailings which would otherwise be produced and also results in an increased hydrocarbon yield.

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