Silicoaluminophosphate (SAPO) zeolite SAPO-34 membranes with a uniform pore size of 0.38 nm and unique adsorption properties have been used in natural gas purification, H₂ purification, Kr/Xe separation and other gas separations. Additionally, owing to their high thermal and chemical stability, SAPO-34 membranes have been used as catalytic membrane reactors to enhance the conversion and selectivity of high temperature reactions such as propane dehydrogenation (PDH) and urea methanolysis to dimethyl carbonate (UM-to-DMC) reactions. This review focuses on the state-of-the-art applications of SAPO-34 membranes in gas separation and catalytic membrane reactors. Their synthesis conditions, permeation mechanism, and performance advantages are examined. Finally, current challenges and future trends of SAPO-34 membranes for industrial application are discussed. We expect this review to be a comprehensive resource on the fabrication of high quality SAPO-34 membranes, and thus help stimulate the application of SAPO-34 membranes in different industrial applications.

中文翻译：

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对SAPO-34沸石膜和膜反应器最新进展的简要回顾

硅铝磷酸盐（SAPO）沸石SAPO-34膜具有0.38 nm的均匀孔径和独特的吸附特性，已用于天然气净化H _2中净化，Kr / Xe分离和其他气体分离。此外，由于其高的热稳定性和化学稳定性，SAPO-34膜已用作催化膜反应器，以提高高温反应的转化率和选择性，例如丙烷脱氢（PDH）和尿素甲醇分解为碳酸二甲酯（UM-to-to DMC）反应。这篇综述着重于SAPO-34膜在气体分离和催化膜反应器中的最新应用。研究了它们的合成条件，渗透机理和性能优势。最后，讨论了面向工业应用的SAPO-34膜的当前挑战和未来趋势。我们希望这次审查能够提供有关高质量SAPO-34膜制造的综合资源，