Solvent extraction of hydrocarbon oils

Details Solvent extraction of hydrocarbon oils Solvent extraction of hydrocarbon oils

C - Chemistry, Metallurgy

10

G

196/63

C10G 21/20 (2006.01) C10G 21/00 (2006.01)

Patent

CA 1150176

Abstract: A solvent refining process utilizing N-methyl-2-pyrrolidone as solvent in which the extract from the solvent extraction zone is cooled to form two immiscible liquid phases, a secondary extract phase and a secondary raffinate phase. The secondary raffinate phase is returned to the extraction zone resulting in increased yield of refined oil product and savings in energy required for the process.

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