Membrane technology has emerged as a promising approach for various CO capture applications, including but not limited to hydrogen purification, natural gas processing, biogas upgrading and flue gas post-treatment. Past decades have seen tremendous efforts in developing new materials with better intrinsic separation capacities. However, only a few of them have made their way to the market. It is therefore timely to compile a review that identifies the gap between materials development and fabrication of asymmetric membranes for carbon capture applications. In this review, we give an overview of the recent development of membrane materials for CO separation. Then, we summarize the processing techniques to turn materials into asymmetric membranes and state-of-the-art membranes. Based upon detailed presentation of literature data, we identify the obstacles preventing CO capture membranes from moving from the lab to the large scale. Last, perspectives on future membrane development are discussed.

中文翻译：

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碳捕获膜的最新进展：从材料到非对称膜


膜技术已成为各种二氧化碳捕获应用的一种有前途的方法，包括但不限于氢气纯化、天然气加工、沼气升级和烟气后处理。过去几十年来，人们在开发具有更好内在分离能力的新材料方面付出了巨大的努力。然而，只有少数产品进入市场。因此，现在是时候编写一篇综述来确定碳捕获应用的材料开发和非对称膜制造之间的差距。在这篇综述中，我们概述了用于 CO 分离的膜材料的最新发展。然后，我们总结了将材料转化为非对称膜和最先进膜的加工技术。根据文献数据的详细介绍，我们确定了阻止二氧化碳捕获膜从实验室走向大规模应用的障碍。最后，讨论了未来膜发展的前景。