炭分子筛膜的制备与改性

Preparation and modification of carbon molecular sieve membranes

炭分子筛膜是近年来发展起来的高效、新型气体分离膜,具有良好的气体分离选择性,高的热和化学稳定性,但其气体分离选择性与气体渗透通量却不能同时达到很高的要求。综述了炭分子筛膜的制备材料,重点讨论了化学方法和物理方法对制备炭膜的前驱体进行改性,展望了炭分子筛膜的未来发展方向。

Carbon molecular sieve membrane is a high-performance and new type of gas separation membrane, which has been developed well in recent years. It has good gas separation selectivity and high thermal and chemical stability, but the separation and gas flux cannot meet the high demands at the same time. The development of carbon membranes in recent years is reviewed and the chemical and physical methods of modifying the precursor of carbon membrane are discussed in this paper. The direction of developing in the future for the carbon membranes is pointed out.