二氧化碳膜分离材料及其性能研究进展

Research progress of carbon dioxide membrane separationmaterials and their properties

摘要:

CCUS是能源行业绿色发展的重要途经。与化学吸收法、变压吸附法和低温蒸馏法等传统工艺相比,膜分离方法具有低能耗、高效率、小型化、环境友好、易于与其他技术集成等优势。目前,膜材料的选择、改性以及对膜结构的重构是提高膜材料分离性能的关键。本文总结对比了有机聚合物膜、无机膜以及混合基质膜的研究进展,并对其分离机理、分离性能、改性研究以及用于制备混合基质膜的填充材料进行了综述,并进一步展望了CO₂分离膜材料性能改进的研究方向及膜分离技术所面临的挑战。

Abstract:

CCUS is an important way for green development of the energy industry. Compared with traditional processes such as chemical absorption, pressure swing adsorption, and cryogenic distillation, membrane separation method has the advantages of low energy consumption, high efficiency, miniaturization, environmental-friendly and easy integration with other technologies. At present, the selection and modification of membrane materials and the reconstruction of membrane structure are the keys to improving the separation performance. This paper summarizes and compares the research progress of organic polymer membranes, inorganic membranes and mixed matrix membranes, and reviews their separation mechanism, separation performance, modification research and filling materials used to prepare mixed matrix membranes. The research direction of improving the performance of CO₂ separation membrane materials and the challenges faced by membrane separation technology are further prospected.