Method of separating olefins from mixtures with paraffins

Details Method of separating olefins from mixtures with paraffins Method of separating olefins from mixtures with paraffins

C - Chemistry, Metallurgy

07

C

C07C 7/144 (2006.01)

Patent

CA 2501145

A process for the separation or concentration of olefinic hydrocarbons from mixtures of olefinic and paraffinic hydrocarbons uses a polyimide membrane. The process is well suited to separating propylene from propylene/propane mixtures. The novel method The membrane exhibits good resistance to plasticization by hydrocarbon components in the gas mixture under practical industrial process conditions.

Cette invention concerne un procédé de séparation ou de concentration d'hydrocarbures oléfiniques à partir de mélanges d'hydrocarbures oléfiniques et paraffiniques, lequel procédé fait appel à une membrane polyimide. Ce procédé convient à la séparation de propylène à partir de mélanges de propylène/propane. Cette membrane présente une bonne résistance à la plastification par des composants hydrocarbures dans le mélange gazeux dans des conditions pratiques de procédé industriel.

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