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用于烯烃/石蜡分离的碳分子筛膜聚合物前驱体综述

A Review on Polymer Precursors of Carbon Molecular Sieve Membranes for Olefin/Paraffin Separation.

作者信息

Kim Seong-Joong, Kwon YongSung, Kim DaeHun, Park Hosik, Cho Young Hoon, Nam Seung-Eun, Park You-In

机构信息

Green Carbon Research Center, Korea Research Institute of Chemical Technology (KRICT), Gajeong-ro 141, Yuseong-gu, Daejeon 34114, Korea.

Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea.

出版信息

Membranes (Basel). 2021 Jun 29;11(7):482. doi: 10.3390/membranes11070482.

DOI:10.3390/membranes11070482
PMID:34209477
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8304072/
Abstract

Carbon molecular sieve (CMS) membranes have been developed to replace or support energy-intensive cryogenic distillation for olefin/paraffin separation. Olefin and paraffin have similar molecular properties, but can be separated effectively by a CMS membrane with a rigid, slit-like pore structure. A variety of polymer precursors can give rise to different outcomes in terms of the structure and performance of CMS membranes. Herein, for olefin/paraffin separation, the CMS membranes derived from a number of polymer precursors (such as polyimides, phenolic resin, and polymers of intrinsic microporosity, PIM) are introduced, and olefin/paraffin separation properties of those membranes are summarized. The effects from incorporation of inorganic materials into polymer precursors and from a pyrolysis process on the properties of CMS membranes are also reviewed. Finally, the prospects and future directions of CMS membranes for olefin/paraffin separation and aging issues are discussed.

摘要

碳分子筛（CMS）膜已被开发用于替代或辅助烯烃/石蜡分离中能耗高的低温精馏。烯烃和石蜡具有相似的分子特性，但具有刚性狭缝状孔结构的CMS膜可有效分离它们。多种聚合物前体在CMS膜的结构和性能方面会产生不同的结果。在此，针对烯烃/石蜡分离，介绍了源自多种聚合物前体（如聚酰亚胺、酚醛树脂和固有微孔聚合物，PIM）的CMS膜，并总结了这些膜的烯烃/石蜡分离性能。还综述了将无机材料掺入聚合物前体以及热解过程对CMS膜性能的影响。最后，讨论了CMS膜用于烯烃/石蜡分离的前景和未来方向以及老化问题。

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