Research progress of polymeric material of gas separation membrane for gas pair CO_2/CH_4

The method of gas membrane separation is an important technology in the separation of gas pair CO2/CH4.This paper introduces generally the development of the important polymeric materials of gas separation membrane at home and abroad in this field,and recommends specially polyimide(PI) and facilitated transport membranes.Moreover some meaningful improvement of membrane materials is proposed to produce membranes with better performance.