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A review of polymeric composite membranes for gas separation and energy production
Progress in Polymer Science ( IF 27.1 ) Pub Date : 2019-06-21 , DOI: 10.1016/j.progpolymsci.2019.06.001
Can Zeng Liang , Tai-Shung Chung , Juin-Yih Lai

Membrane-based technologies for gas and vapor separations have been industrialized for more than three decades due to (1) the invention of asymmetric composite membranes and (2) their superior energy-efficient and environment-friendly characteristics. However, industries demand more robust and productive composite membranes to meet the harsh conditions in new or emerging applications. The fabrication of thin film composite (TFC) membranes consisting of an ultrathin selective layer and a strong porous substrate will likely play the pivotal role to meet the future demands. In this review, we revisit the basis of composite membranes for gas and vapor separations with the aim to produce next-generation high-performance composite membranes. This review focuses on (1) the fundamentals of gas transport theories through composite membranes, (2) fabrication techniques, and (3) performance characteristics and stability of composite membranes. We examine, elucidate and explore the state-of-the-art techniques for the fabrication of composite membranes. Based on the resistance model, we derive a new generalized equation for gas permeance, which is simple, informative and applicable to composite membranes. We also outline the directions, challenges and key areas for future R&D in the field of gas/vapor-separation composite membranes.



中文翻译:

用于气体分离和能量生产的聚合物复合膜的综述

由于(1)非对称复合膜的发明和(2)优异的节能和环保特性,基于膜的气体和蒸汽分离技术已经工业化了三十多年。但是,工业界需要更坚固,生产效率更高的复合膜,以满足新的或新兴应用中的苛刻条件。由超薄选择层和坚固的多孔基材组成的薄膜复合(TFC)膜的制造可能会发挥关键作用,以满足未来的需求。在这篇综述中,我们重新审视了用于气体和蒸汽分离的复合膜的基础,目的是生产下一代高性能复合膜。本文的重点是(1)通过复合膜的气体传输理论的基础,(2)制造技术,以及(3)复合膜的性能特征和稳定性。我们研究,阐明和探索了制造复合膜的最新技术。基于阻力模型,我们推导了一个新的通用的气体渗透方程,该方程简单,有用,适用于复合膜。我们还概述了气体/蒸汽分离复合膜领域未来研发的方向,挑战和关键领域。

更新日期:2019-06-21
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