辽宁石油化工大学学报 ›› 2025, Vol. 45 ›› Issue (6): 35-42.DOI: 10.12422/j.issn.1672-6952.2025.06.005

• 材料科学与新能源(氢能技术研究) • 上一篇    下一篇

储氢合金分离低浓度氢气的实验研究

徐鑫淼1(), 刘学武1(), 梁飞2, 张春奇2, 任权兵3, 郑波3   

  1. 1.大连理工大学 化工学院,辽宁 大连 116024
    2.安徽大学 物质科学与信息技术研究院,安徽 合肥 230601
    3.江西江钨浩运科技有限公司,江西 南昌 330096
  • 收稿日期:2025-08-07 修回日期:2025-09-05 出版日期:2025-12-25 发布日期:2025-12-07
  • 通讯作者: 刘学武
  • 作者简介:徐鑫淼(2000⁃),男,硕士研究生,从事氢气净化方面的研究;E⁃mail:xuxinmiao@mail.dlut.edu.cn
  • 基金资助:
    国家重点研发计划项目(2021YFB4000604);安徽省高校杰出青年科研项目(2022AH020013)

Experimental Study on Separation of Low⁃Concentration Hydrogen Using Hydrogen Storage Alloys

Xinmiao XU1(), Xuewu LIU1(), Fei LIANG2, Chunqi ZHANG2, Quanbing REN3, Bo ZHENG3   

  1. 1.School of Chemical Engineering,Dalian University of Technology,Dalian Liaoning 116024,China
    2.Institutes of Physical Science and Information Technology,Anhui University,Hefei Anhui 230601,China
    3.Jiangxi Jiangwu Haoyun High?Tech Co. ,Ltd. ,Nanchang Jiangxi 330096,China
  • Received:2025-08-07 Revised:2025-09-05 Published:2025-12-25 Online:2025-12-07
  • Contact: Xuewu LIU

摘要:

工业副产尾气中低浓度氢气的高效回收,对能源利用与低碳转型具有重要意义。采用填充ReNi4.35Co0.4Mn0.05Al0.2合金的流通式反应器,以体积分数25% H2+体积分数75% N2的混合气为模拟原料,系统探究了循环介质温度、进气流量及进气压力对氢气分离提纯效果的影响,且以累积流量达500 L时的氢气利用率为核心评价指标。结果表明,在相同的循环介质温度和进气压力下,氢气利用率随进气流量的增大呈递减趋势,且低进气流量至中进气流量区间的降幅更为显著;循环介质温度对氢气利用率的影响呈单峰分布,其中5 ℃工况时效果最优(兼顾热力学与动力学性能);进气压力升高可提升氢气利用率,且在低进气流量工况下,进气压力对氢气利用率的增益效果更显著。最佳工艺条件:循环介质温度为5 ℃,进气压力为5 MPa,进气流量为5 L/min。在最佳工艺条件下,氢气利用率可达97.1%。研究内容可为金属氢化物法回收低浓度工业副产氢提供理论指导与参数依据。

关键词: 金属氢化物, 氢气纯化, 实验研究, 氢气利用率

Abstract:

Efficient recovery of low-concentration hydrogen from industrial by?product tail gas is of great significance for energy utilization and low-carbon transition. This study employs a flow-through reactor packed with ReNi4.35Co0.4Mn0.05Al0.2 alloy, using a 25%H2+75%N2 gas mixture as the simulated feed, to systematically investigate the effects of the temperature of the circulating medium, inlet flow rate, and pressure on hydrogen separation and purification performance, with hydrogen utilization efficiency at a cumulative flow of 500 L as the core evaluation index. The results indicate that under the same circulating medium temperature and inlet gas pressure, hydrogen utilization efficiency decreases with increasing flow rate, with a more significant drop in the low to medium flow rate range; the influence of temperature shows a unimodal distribution, with 5 ℃ being optimal (balancing thermodynamics and kinetics); and increasing pressure enhances utilization efficiency, with the pressure-induced improvement more pronounced at low flow rates. The optimal process conditions are as follows: circulating medium temperature of 5 ℃, inlet gas pressure of 5 MPa, and inlet gas flow rate of 5 L/min. Under these conditions, the hydrogen utilization efficiency can reach 97.1%. The research content can provide theoretical and parameter basis for the recovery of low?concentration industrial by-product hydrogen via the metal hydride method.

Key words: Metal hydride, Hydrogen purification, Experimental research, Hydrogen utilization efficiency

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引用本文

徐鑫淼, 刘学武, 梁飞, 张春奇, 任权兵, 郑波. 储氢合金分离低浓度氢气的实验研究[J]. 辽宁石油化工大学学报, 2025, 45(6): 35-42.

Xinmiao XU, Xuewu LIU, Fei LIANG, Chunqi ZHANG, Quanbing REN, Bo ZHENG. Experimental Study on Separation of Low⁃Concentration Hydrogen Using Hydrogen Storage Alloys[J]. Journal of Liaoning Petrochemical University, 2025, 45(6): 35-42.

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链接本文: https://journal.lnpu.edu.cn/CN/10.12422/j.issn.1672-6952.2025.06.005

               https://journal.lnpu.edu.cn/CN/Y2025/V45/I6/35