SCI和EI收录∣中国化工学会会刊

中国化学工程学报 ›› 2022, Vol. 50 ›› Issue (10): 168-176.DOI: 10.1016/j.cjche.2022.06.005

• Separation Science and Engineering • 上一篇    下一篇

Synthesis and optimization of high-performance amine-based polymer for CO2 separation

Ye Yuan1,2, Yurui Pan1,2, Menglong Sheng1,2, Guangyu Xing1,2, Ming Wang3, Jixiao Wang1,2, Zhi Wang1,2   

  1. 1 Chemical Engineering Research Center, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China;
    2 Tianjin Key Laboratory of Membrane Science and Desalination Technology, State Key Laboratory of Chemical Engineering, Collaborative Innovation Center of Chemical Science and Engineering, Haihe Laboratory of Sustainable Chemical Transformations, Tianjin University, Tianjin 300350, China;
    3 College of Chemical Engineering and Safety, Binzhou University, Engineering Research Center for Industrial Wastewater Treatment and Reuse of Shandong Province, Binzhou 256600, China
  • 收稿日期:2022-02-22 修回日期:2022-05-26 出版日期:2022-10-28 发布日期:2023-01-04
  • 通讯作者: Zhi Wang,E-mail:wangzhi@tju.edu.cn
  • 基金资助:
    This research was supported by the National Key Research and Development Program of China (2021YFB3801200), the National Natural Science Foundation of China (21938007) and the Natural Science Foundation of Hebei Province (E2020402036). All authors are also grateful to Rui Xu for his full support in this work.

Synthesis and optimization of high-performance amine-based polymer for CO2 separation

Ye Yuan1,2, Yurui Pan1,2, Menglong Sheng1,2, Guangyu Xing1,2, Ming Wang3, Jixiao Wang1,2, Zhi Wang1,2   

  1. 1 Chemical Engineering Research Center, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China;
    2 Tianjin Key Laboratory of Membrane Science and Desalination Technology, State Key Laboratory of Chemical Engineering, Collaborative Innovation Center of Chemical Science and Engineering, Haihe Laboratory of Sustainable Chemical Transformations, Tianjin University, Tianjin 300350, China;
    3 College of Chemical Engineering and Safety, Binzhou University, Engineering Research Center for Industrial Wastewater Treatment and Reuse of Shandong Province, Binzhou 256600, China
  • Received:2022-02-22 Revised:2022-05-26 Online:2022-10-28 Published:2023-01-04
  • Contact: Zhi Wang,E-mail:wangzhi@tju.edu.cn
  • Supported by:
    This research was supported by the National Key Research and Development Program of China (2021YFB3801200), the National Natural Science Foundation of China (21938007) and the Natural Science Foundation of Hebei Province (E2020402036). All authors are also grateful to Rui Xu for his full support in this work.

摘要: Membrane technology features inspiring excellence from numerous separation technologies for CO2 capture from post-combustion gas. Polyvinylamine (PVAm)-based facilitated transport membranes show significantly high separation performance, which has been proven promising for industrial scale-up. However, commercialized PVAm with low molecular weight and excessive crystallinity is not available to prepare high-performance membranes. Herein, the synthesis process of PVAm was optimized by regulating polymerization and acidic hydrolytic conditions. The membranes based on PVAm with a molecular weight of 154 kDa and crystallinity of 11.37% display high CO2 permeance of 726 GPU and CO2/N2 selectivity of 55 at a feed gas pressure of 0.50 MPa. Furthermore, we established a PVAm synthesis reactor with an annual PVAm solution (1%(mass)) capacity of over 7000 kg and realized the scaled-up manufacture of both PVAm and composite membranes.

关键词: CO2/N2 separation, Polyvinylamine, Polymeric membranes, Facilitated transport membranes

Abstract: Membrane technology features inspiring excellence from numerous separation technologies for CO2 capture from post-combustion gas. Polyvinylamine (PVAm)-based facilitated transport membranes show significantly high separation performance, which has been proven promising for industrial scale-up. However, commercialized PVAm with low molecular weight and excessive crystallinity is not available to prepare high-performance membranes. Herein, the synthesis process of PVAm was optimized by regulating polymerization and acidic hydrolytic conditions. The membranes based on PVAm with a molecular weight of 154 kDa and crystallinity of 11.37% display high CO2 permeance of 726 GPU and CO2/N2 selectivity of 55 at a feed gas pressure of 0.50 MPa. Furthermore, we established a PVAm synthesis reactor with an annual PVAm solution (1%(mass)) capacity of over 7000 kg and realized the scaled-up manufacture of both PVAm and composite membranes.

Key words: CO2/N2 separation, Polyvinylamine, Polymeric membranes, Facilitated transport membranes