Solvent deasphalting process by solvent recovery at staged...

Details Solvent deasphalting process by solvent recovery at staged... Solvent deasphalting process by solvent recovery at staged...

C - Chemistry, Metallurgy

10

G

196/246

C10G 21/28 (2006.01) C10G 21/00 (2006.01)

Patent

CA 1069454

Abstract The energy requirements of a process for the solvent extraction of hydrocarbons from residua are reduced by nearly 50%, and capital requirements reduced substantially by evaporating solvent from extracted hydrocarbons in two or more pressure stages, the first stage evaporation occurring at a pressure sufficiently high to permit condensation of the solvent at a temperature sufficient to be combined with the solvent feed to the extractor at the required extraction temperature.

251797

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