Research Progress on Membrane Separation Materials for Carbon Dioxide
Objective:To discuss in detail the application prospects of organic,inorganic and mixed matrix membrane materials in the field of CO2 separation,and to analyze the separation performance and applicability of various membrane materials,so as to provide a reference for the development of gas separation technology.Methods:The effects of various membrane materials in the process of CO2 separation were compared and analyzed.Results:Among the organic membrane materials,polybenzimidazole membrane,polyimide membrane and polysulfone membrane showed good selectivity in the separation of H2/CO2,CO2/N2 and CO2/CH4.Among the inorganic membrane materials,dense metal film and porous inorganic membrane have high separation performance for CO2 mixed gases.The hybrid matrix membrane material improves the CO2 separation efficiency and the stability of the membrane material through the combination of organic polymer matrix and inorganic filler.Conclusion:Membrane separation technology is widely used in the field of gas separation,and different types of membrane materials have their own advantages in CO2 separation.The organic membrane materials have good selectivity,the inorganic membrane materials have high separation performance,and the mixed matrix membrane materials have outstanding advantages in improving the separation efficiency and stability.
CO2 membrane separationinorganic membranesorganic membranemixed matrix membranesgas separation technology