Numerical study on hydrogen recovery performance of a novel industrial scale hydride-based flow-through hydrogen purification reactor with distributed gas inlet tubes

IF 8.1 2区工程技术 Q1 CHEMISTRY, PHYSICAL

International Journal of Hydrogen Energy Pub Date : 2025-07-18 DOI:10.1016/j.ijhydene.2025.150496

Ruiqing Li, Guangze Wan, Leilei Guo, Fusheng Yang, Zhen Wu, Zaoxiao Zhang

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Abstract

In this study, an industrial-scale, flow-through metal hydride hydrogen purification (MHHP) reactor with distributed gas inlet tubes loaded with 160 kg of LaNi₄.₃Al₀.₇ material was designed. Numerical simulations were employed to analyze the impact of reactor structure parameters, such as bed thickness and gas inlet tube length. Further, we investigated how operational parameters, including heat transfer fluid temperature, hydrogen partial pressure, and raw gas composition, influence the absorption efficiency of the reactor. Moreover, an annular finned MHHP reactor was designed, which increased the hydrogen absorption efficiency from 70 % to 77.7 % under low pressure (0.67 MPa). This research contributes to the development of high-performance industrial scale MHHP reactor, provides valuable insights into the application of large MHHP reactors in the recovery of industrial by-product hydrogen.

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新型工业规模分布式进气管氢化物基流式氢净化反应器氢气回收性能的数值研究

在这项研究中，设计了一个工业规模的，流式金属氢化物氢净化（MHHP）反应器，该反应器具有负载160 kg LaNi4.3Al0.7材料的分布式进气管。通过数值模拟分析了床层厚度、进气管长度等反应器结构参数对反应器性能的影响。此外，我们还研究了包括传热流体温度、氢气分压和原料气体组成在内的操作参数对反应器吸收效率的影响。此外，设计了环形翅片MHHP反应器，在低压（0.67 MPa）条件下，将吸氢效率从70%提高到77.7%。本研究有助于高性能工业规模MHHP反应器的开发，为大型MHHP反应器在工业副产氢回收中的应用提供了有价值的见解。

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来源期刊

International Journal of Hydrogen Energy 工程技术-环境科学

CiteScore

13.50

自引率

25.00%

发文量

3502

审稿时长

60 days

期刊介绍： The objective of the International Journal of Hydrogen Energy is to facilitate the exchange of new ideas, technological advancements, and research findings in the field of Hydrogen Energy among scientists and engineers worldwide. This journal showcases original research, both analytical and experimental, covering various aspects of Hydrogen Energy. These include production, storage, transmission, utilization, enabling technologies, environmental impact, economic considerations, and global perspectives on hydrogen and its carriers such as NH3, CH4, alcohols, etc. The utilization aspect encompasses various methods such as thermochemical (combustion), photochemical, electrochemical (fuel cells), and nuclear conversion of hydrogen, hydrogen isotopes, and hydrogen carriers into thermal, mechanical, and electrical energies. The applications of these energies can be found in transportation (including aerospace), industrial, commercial, and residential sectors.