Process for recovery of bitumen from tar sands

Details Process for recovery of bitumen from tar sands Process for recovery of bitumen from tar sands

C - Chemistry, Metallurgy

10

G

196/15, 196/22

C10G 1/04 (2006.01) C10G 1/00 (2006.01)

Patent

CA 1177005

Case No. 6257 PROCESS FOR RECOVERY OF BITUMEN FROM TAR SANDS Abstract of the Disclosure 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 is hydrogenated and used as the donor solvent in the desalting step.

402299

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