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Chemcial Industry and Engineering 2024, Vol. 41 Issue (1) :47-70    DOI: 10.13353/j.issn.1004.9533.20230151
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Research progress in hydrogen purification technology
LI Wenbin, WU Yazhou, ZHENG Hao, JIANG Xiaofeng, ZENG Liang
Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China

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Abstract Hydrogen purification technology is an essential part of the efficient use of hydrogen energy by removing impurities from hydrogen-containing raw gases, and various methods have been developed to obtain high purity H2 for different industrial needs. Based on the purification principle, H2 purification methods can be divided into physical methods such as pressure swing adsorption, membrane separation, cryogenic distillation methods, and chemical methods such as CO preferential oxidation, CO selective methanation and metal hydride separation methods. The technical principles and research progress of the different purification methods are reviewed in this paper. The choice of H2 purification process should be based on the composition of the raw gases, the requirements of the product gas and the specific scale of purification. The combination of different processes, the development of advanced materials as well as novel process intensification technologies are needed for future research.
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LI Wenbin
WU Yazhou
ZHENG Hao
JIANG Xiaofeng
ZENG Liang
Keywordshydrogen purification   pressure swing adsorption   CO preferential oxidation   CO selective methanation     
Received 2023-04-03;
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LI Wenbin, WU Yazhou, ZHENG Hao, JIANG Xiaofeng, ZENG Liang.Research progress in hydrogen purification technology[J]  Chemcial Industry and Engineering, 2024,V41(1): 47-70
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