Olefin separation process

Details Olefin separation process Olefin separation process

C - Chemistry, Metallurgy

07

C

260/719.5

C07C 11/02 (2006.01) C07C 7/11 (2006.01) C07C 7/152 (2006.01)

Patent

CA 1118457

10,648 OLEFIN SEPARATION PROCESS ABSTRACT OF THE DISCLOSURE There is disclosed a process for the separation of ethylene or propylene from a purified, multi-component gas stream produced from the thermal cracking of hytro- carbons and containing ethylene or propylene and other low molecular weight components comprising the steps of: introducing said multi-component gas stream into an aque- ous silver salt solution stream to effect the absorption and/or complexing of said contained ethylene or propylene and reaction of trace acetylenes with the silver metal ions of such solution; venting of the silver salt solu- tion stream at reduced pressure to remove the dissolved other low molecular weight components; treating the resulting silver salt solution stream to separate the absorbed and/or complexed ethylene or propylene from the silver salt stream; further treating the resultant silver salt solution stream to release the contained trace acetylenes therefrom and provide an aqueous silver salt stream; and recycling said aqueous silver salt stream to said introducing step. SPECIFICATION

329828

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