Process for production of oil from oil sand

Details Process for production of oil from oil sand Process for production of oil from oil sand

C - Chemistry, Metallurgy

10

G

196/19

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

Patent

CA 1117055

ABSTRACT It is known to extract oil from oil sands or oil shale deposits by high temperature, high pressure steam treatment. Such processes consume a significant proportion of the produced oil to generate the required steam. This lowers the efficiency of recovery. The present invention seeks to over- come this drawback by providing a process for the production of petroleum from oil sand or petroleum containing rock which comprises: adding cyclo- dextrin or a starch decomposition product containing cyclodextrin to the oil sand or oil containing rock to form a cyclodextrin oil inclusion compound; separating the resulting petroleum inclusion compound from the oil sand or oil containing rock, and treating the resulting oil inclusion compound with hot water or steam to separate the petroleum from the cyclodextrin or starch decomposition product containing dextrin.

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