SCI和EI收录∣中国化工学会会刊

中国化学工程学报 ›› 2024, Vol. 72 ›› Issue (8): 44-52.DOI: 10.1016/j.cjche.2024.01.011

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Preparation of a zeolite-palladium composite membrane for hydrogen separation: Influence of zeolite film on membrane stability

Hongmei Wu, Xinyu Liu, Yu Guo   

  1. School of Chemical and Environmental Engineering, Liaoning University of Technology, Jinzhou 121001, China
  • 收稿日期:2023-10-30 修回日期:2023-12-17 出版日期:2024-08-28 发布日期:2024-10-17
  • 通讯作者: Yu Guo,E-mail:guoyu@lnut.edu.cn.Tel.:+86 416 4199013
  • 基金资助:
    The authors gratefully acknowledge financial support provided by Liaoning Revitalization Talents Program (XLYC2007171), the Natural Science Foundation of Liaoning Province (2021-MS-321) and Research funding project of Liaoning Provincial Education Department (LJKZZ20220086).

Preparation of a zeolite-palladium composite membrane for hydrogen separation: Influence of zeolite film on membrane stability

Hongmei Wu, Xinyu Liu, Yu Guo   

  1. School of Chemical and Environmental Engineering, Liaoning University of Technology, Jinzhou 121001, China
  • Received:2023-10-30 Revised:2023-12-17 Online:2024-08-28 Published:2024-10-17
  • Contact: Yu Guo,E-mail:guoyu@lnut.edu.cn.Tel.:+86 416 4199013
  • Supported by:
    The authors gratefully acknowledge financial support provided by Liaoning Revitalization Talents Program (XLYC2007171), the Natural Science Foundation of Liaoning Province (2021-MS-321) and Research funding project of Liaoning Provincial Education Department (LJKZZ20220086).

摘要: With the development of hydrogen energy, palladium-based membranes have been widely used in hydrogen separation and purification. However, the poor chemical stability of palladium composite membranes limits their commercial applications. In this study, a zeolite-palladium composite membrane with a sandwich-like structure was obtained by using a TS-1 zeolite film grown on the surface of palladium membrane. The membrane microstructure was characterized by SEM and EDX. The effects of the TS-1 film on the hydrogen permeability and stability of palladium composite membrane were investigated in details. Benefited from the protection of the TS-1 zeolite film, the stability of palladium composite membrane was enhanced. The results indicate that the TS-1-Pd composite membrane was stable after eight cycles of the temperature exchange cycles between 773 K and 623 K. Especially, the loss of hydrogen permeance for TS-1-Pd composite membrane was much smaller than that of the pure palladium membrane when the membrane was tested in the presence of C3H6 atmosphere. It indicated that the TS-1-Pd composite membrane had better chemical stability in comparison with pure palladium membrane, owing to its sandwich-like structure. This work provides an efficient way for the deposition of zeolite film on palladium membrane to enhance the membrane stability.

关键词: Palladium membrane, Zeolite film, Hydrogen separation, Stability

Abstract: With the development of hydrogen energy, palladium-based membranes have been widely used in hydrogen separation and purification. However, the poor chemical stability of palladium composite membranes limits their commercial applications. In this study, a zeolite-palladium composite membrane with a sandwich-like structure was obtained by using a TS-1 zeolite film grown on the surface of palladium membrane. The membrane microstructure was characterized by SEM and EDX. The effects of the TS-1 film on the hydrogen permeability and stability of palladium composite membrane were investigated in details. Benefited from the protection of the TS-1 zeolite film, the stability of palladium composite membrane was enhanced. The results indicate that the TS-1-Pd composite membrane was stable after eight cycles of the temperature exchange cycles between 773 K and 623 K. Especially, the loss of hydrogen permeance for TS-1-Pd composite membrane was much smaller than that of the pure palladium membrane when the membrane was tested in the presence of C3H6 atmosphere. It indicated that the TS-1-Pd composite membrane had better chemical stability in comparison with pure palladium membrane, owing to its sandwich-like structure. This work provides an efficient way for the deposition of zeolite film on palladium membrane to enhance the membrane stability.

Key words: Palladium membrane, Zeolite film, Hydrogen separation, Stability