Process for the extraction of hydrocarbons from a...

Details Process for the extraction of hydrocarbons from a... Process for the extraction of hydrocarbons from a...

C - Chemistry, Metallurgy

10

G

196/30, 196/6.1

C10G 1/02 (2006.01) C10B 49/22 (2006.01) C10G 1/00 (2006.01)

Patent

CA 1186260

A B S T R A C T Hydrocarbons are extracted from a hydrocarbon-bearing substrate, e.g. shale oil, bituminous coal, tar sand, in the substantial absence of oxygen at temperatures above 400°C, by passing substrate particles through a plurality of successive zones in which the substrate is mixed with a solid heat-bearing medium, the mixture being maintained in a fluidized-bed con- dition, and the liberated hydrocarbons being removed by passage of an inert stripping gas in cross-current flow with respect to the passage of the substrate particles. The average cross-sectional area of at least one or more of the zones sub- sequent to the first one is preferably smaller than the average cross-sectional area of one or more of the preceding zones. An apparatus for carrying out the process is described.

398785

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