Process to recover benzene from mixed hydrocarbons

Details Process to recover benzene from mixed hydrocarbons Process to recover benzene from mixed hydrocarbons

C - Chemistry, Metallurgy

07

C

C07C 15/02 (2006.01) B01D 3/40 (2006.01) C07C 7/08 (2006.01)

Patent

CA 2134849

Benzene and other aromatics are separated from a stream of mixed hydrocarbons containing both aromatics and non-aromatics by extractive distillation with a solvent system containing dimethyl sulfoxide and optionally a co-solvent, preferably water, followed by distillation stripping of the aromatics from the enriched solvent system, and recycle of the lean solvent system to the extractive distillation step.

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