由于气体分离膜具有高能效、相对较低的成本和环境影响，通过气体分离膜捕集二氧化碳（CO₂）变得越来越具有吸引力。在过去的十年中，人们开发了基于聚乙烯胺（PVAm）的促进传递（FT）膜来捕集CO₂。本文讨论了聚乙烯胺促进传递膜应用于发电厂和水泥厂的燃烧后CO₂捕集从材料到工艺的挑战。我们可以基于先前中试示范中获得的经验来指导设计其他类型的膜捕集CO₂。特别强调了组件和工艺设计对实现高性能膜系统的重要性。此外，过程模拟和成本估算的结果表明，三级膜系统对于实现95％的高CO₂纯度是可行的。我们发现单位CO₂的捕集成本在很大程度上取决于所需的CO₂捕集率，在50％的中等CO₂捕集率下，捕集每吨CO₂的成本为63.7美元。因此，我们发现FT膜系统对于部分CO₂捕集更具竞争力。

Carbon dioxide (CO₂) capture by gas-separation membranes has become increasingly attractive due to its high energy efficiency, relatively low cost, and environmental impact. Polyvinylamine (PVAm)-based facilitated transport (FT) membranes were developed in the last decade for CO₂ capture. This work discusses the challenges of applying PVAm-based FT membranes from materials to processes for postcombustion CO₂ capture in power plants and cement factories. Experiences learned from a pilot demonstration system can be used to guide the design of other membranes for CO₂ capture. The importance of module and process design is emphasized in the achievement of a high-performance membrane system. Moreover, the results from process simulation and cost estimation indicate that a three-stage membrane system is feasible for achieving a high CO₂ purity of 95 vol%. The specific CO₂ capture cost was found to significantly depend on the required CO₂ capture ratio, and a moderate CO₂ capture ratio of 50% presented a cost of 63.7 USD per tonne CO₂ captured. Thus, FT membrane systems were found to be more competitive for partial CO₂ capture.