SCI和EI收录∣中国化工学会会刊

Chinese Journal of Chemical Engineering ›› 2025, Vol. 79 ›› Issue (3): 252-259.DOI: 10.1016/j.cjche.2024.11.013

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Synthesis of a porous organic polymer via click reaction for efficient CH4/C2H6/C3H8 separation

Xun Wang, Tianjian Lun, Changbin Xu, Haolong Zheng, Daofei Lv, Xin Chen, Jian Yan, Junjie Peng, Feng Xu, Zewei Liu   

  1. School of Environmental and Chemical Engineering, Foshan University, Foshan 528225, China
  • Received:2024-08-29 Revised:2024-11-26 Accepted:2024-11-26 Online:2025-01-19 Published:2025-03-28
  • Supported by:
    This work is financially supported by the National Natural Science Foundation of China (22208050, 22108034), Guangdong Provincial Natural Science Foundation Project (2023A1515012151) and Scientific Research Project of Guangdong Provincial Department of Education (2023KTSCX132).

Synthesis of a porous organic polymer via click reaction for efficient CH4/C2H6/C3H8 separation

Xun Wang, Tianjian Lun, Changbin Xu, Haolong Zheng, Daofei Lv, Xin Chen, Jian Yan, Junjie Peng, Feng Xu, Zewei Liu   

  1. School of Environmental and Chemical Engineering, Foshan University, Foshan 528225, China
  • 通讯作者: Daofei Lv,E-mail:lvdaofei@fosu.edu.cn;Zewei Liu,E-mail:liuzewei@fosu.edu.cn
  • 基金资助:
    This work is financially supported by the National Natural Science Foundation of China (22208050, 22108034), Guangdong Provincial Natural Science Foundation Project (2023A1515012151) and Scientific Research Project of Guangdong Provincial Department of Education (2023KTSCX132).

Abstract: Adsorptive separation holds important prospect for the challenging recovery of C2H6 and C3H8 from natural gas and the separation efficiency is primarily determined by a high-performance adsorbent. In this work, we reported the synthesis of a novel porous organic polymer, FOSU-POP-1 for the separation of CH4/C2H6/C3H8. The FOSU-POP-1 was synthesized from tetrakis(4-azidophenyl)methane and 1,3,5-triethynylbenzene via click reaction with a Brunauer–Emmett–Teller (BET) surface area of 1038 m2·g-1. Exhibiting stronger affinity towards C3H8 and C2H6 than CH4, 2.85 mmol·g-1 for C3H8 and 2.14 mmol·g-1 for C2H6 were achieved on the FOSU-POP-1 at 0.1 MPa, 298 K, with an ideal adsorbed solution theory selectivity of 227 for C3H8/CH4. The breakthrough experiment confirmed the good dynamic separation performance and recyclability of FOSU-POP-1 for CH4/C2H6/C3H8 ternary mixture. The density functional theory calculation further revealed that the N atom in triazole ring interacted strongly with the C3H8 and C2H6. This work highlighted the promising capability of FOSU-POP-1 for efficiently separating CH4/C2H6/C3H8 mixture.

Key words: Porous organic polymers, Click reaction, Separation, Light hydrocarbon

摘要: Adsorptive separation holds important prospect for the challenging recovery of C2H6 and C3H8 from natural gas and the separation efficiency is primarily determined by a high-performance adsorbent. In this work, we reported the synthesis of a novel porous organic polymer, FOSU-POP-1 for the separation of CH4/C2H6/C3H8. The FOSU-POP-1 was synthesized from tetrakis(4-azidophenyl)methane and 1,3,5-triethynylbenzene via click reaction with a Brunauer–Emmett–Teller (BET) surface area of 1038 m2·g-1. Exhibiting stronger affinity towards C3H8 and C2H6 than CH4, 2.85 mmol·g-1 for C3H8 and 2.14 mmol·g-1 for C2H6 were achieved on the FOSU-POP-1 at 0.1 MPa, 298 K, with an ideal adsorbed solution theory selectivity of 227 for C3H8/CH4. The breakthrough experiment confirmed the good dynamic separation performance and recyclability of FOSU-POP-1 for CH4/C2H6/C3H8 ternary mixture. The density functional theory calculation further revealed that the N atom in triazole ring interacted strongly with the C3H8 and C2H6. This work highlighted the promising capability of FOSU-POP-1 for efficiently separating CH4/C2H6/C3H8 mixture.

关键词: Porous organic polymers, Click reaction, Separation, Light hydrocarbon