用于CO_(2)分离的含氨基酸盐促进传递膜研究进展

Amino acid salts based facilitated transport membranes for CO_(2) separation:State of the art

膜分离法由于其高度模块化、占地面积小、化学排放低或无化学排放和易于操作等优势,被广泛认为是有前途的CO_(2)分离技术.然而,对于气体分离,大多数聚合物膜遵循溶解-扩散机制,因此需要在气体渗透性和选择性之间进行权衡,使CO_(2)分离膜在工业应用中受到限制.而促进传递膜被认为是克服这一限制的有效解决方案.本文综述了用于CO_(2)捕集的含氨基酸盐促进传递膜的研究进展,并针对目前存在的问题,对未来含氨基酸盐的促进传递膜的发展方向提出了建议.

Membrane separation is widely regarded as a promising technology for CO_(2)separation due to its advantages of high modularity,small footprint,low or no chemical emissions and ease of operation.For gas separation,however,most polymer membranes follow a solution-diffusion mechanism,so there is a trade-off between gas permeability and selectivity,which limits the use of membranes for CO_(2)separation in industrial applications.Facilitated transport membrane is considered to be an effective solution to overcome the limitation.In this paper,the research progress of amino acid salts based facilitated transport membranes for CO_(2)separation is reviewed.In view of the existing problems,the future development direction of amino acid salt containing facilitated transport membrane is proposed.