Process for the separation of hydrocarbons from a mixed...

Details Process for the separation of hydrocarbons from a mixed... Process for the separation of hydrocarbons from a mixed...

C - Chemistry, Metallurgy

07

C

202/91

C07C 7/08 (2006.01) B01D 3/40 (2006.01) C07C 15/00 (2006.01)

Patent

CA 1298234

- 17 - PROCESS FOR THE SEPARATION OF HYDROCARBONS FROM A MIXED FEEDSTOCK Abstract In a solvent extraction/steam distillation process for the recovery of aromatic hydrocarbons, the improvement comprising (a) introducing high pressure steam into a steam ejector; (b) passing the steam from step (a) to a first heat exchanger where it exchanges heat with cooler lean solvent coming from the bottom of the distillation column and is condensed; (c) returning the lean solvent from step (b) to the bottom of the distillation column; (d) passing part of the condensate from step (b) to a second heat exchanger where it exchanges heat with the warmer lean solvent coming from the bottom of the distillation column, cooling the lean solvent and vaporizing the condensate; and (e) passing the vapor from step (d) to the steam ejector in step (a). D-14,747

535503

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