CHA型分子筛膜的研究进展  

Research advances of CHA zeolite membrane

作　　者：李璘喆 杨建华[1] LI Linzhe;YANG Jianhua(State Key Laboratory of Fine Chemical,Institute of Adsorption and Inorganic Membrane,School of Chemical Engineering,Dalian University of Technology,Dalian 116012,China)

机构地区：[1]大连理工大学精细化工国家重点实验室吸附与无机膜研究所,大连116012

出　　处：《膜科学与技术》2022年第2期138-145,共8页Membrane Science and Technology

基　　金：国家自然科学基金项目(21776032)资助。

摘　　要：膜分离技术以其分离效率高、能耗低、无污染、操作条件灵活等优势吸引了研究者和工业界的极大兴趣.CHA型沸石分子筛是重要的催化剂、吸附剂,也是优异的理想分离膜材料.本文重点介绍了CHA型沸石膜在气体分离领域和有机溶剂脱水领域的最新研究进展与动态,总结了硅铝型CHA膜和磷铝型CHA膜在分离领域中各自的优势与特点,提出了制备高性能CHA分子筛膜的关键在于对CHA分子筛膜层硅铝比的可控调节,最后对CHA膜研究的未来发展方向进行了展望.Membrane-based separation technology has attracted great interest from researchers, which was attributed to its advantages such as high separation efficiency, low energy consumption, and flexible operating conditions. Chabazite is not only an important catalyst and adsorbent, but also an excellent material for membrane separation. In this paper, the framework structure, physical properties and chemical properties of CHA zeolite were briefly reviewed. The latest advances and prospect of CHA zeolite membrane in the field of gas separation and organic solvent dehydration were mainly addressed. We summarized the advantages and characteristics of aluminosilicate-type and phosphoaluminate-type CHA membrane for separation. It is pointed out that the key to prepare CHA membrane with high performance lies in the controlled adjustment of the Si/Al ratio of CHA zeolite membrane. On this basis, the future development of CHA membrane research was prospected.

关 键 词：分子筛膜 菱沸石 膜分离 硅铝比 

分 类 号：TQ028.8[化学工程]