Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Ian C Roman0
John W Simmons0
Date of Patent
July 31, 2007
0Patent Application Number
103532100
Date Filed
January 27, 2003
0Patent Primary Examiner
Patent abstract
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.
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