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RISSynthesis of polyimide membrane for the separation of CO2/CH4 gases
سال: 2011
خلاصه:
Separation of CO2/CH4 is one of the most important separations in oil and gas industries. Polyimide membranes are remarkable material for this purpose. Robson’s curve considers our claim about polyimide. One of the famous ...
Study of Effect of pressure and temperature on the gas separation properties of a novel copolyimide membrane with flexible moieties
سال: 2011
خلاصه:
In this research a novel copolyimide was synthesized with aliphatic diamine, which composed of 3,3ʹ4,4ʹ-Benzophenonetetracarboxylic dianhydride (BTDA), 4,4ʹ-Oxydianyline (ODA) and 4,9-dioxa-1,12-dodecacanediamine monomers. ...