辽宁石油化工大学学报2025，Vol.45Issue(6)：35-42,8.DOI:10.12422/j.issn.1672-6952.2025.06.005
储氢合金分离低浓度氢气的实验研究
Experimental Study on Separation of Low-Concentration Hydrogen Using Hydrogen Storage Alloys
摘要
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.关键词
金属氢化物/氢气纯化/实验研究/氢气利用率Key words
Metal hydride/Hydrogen purification/Experimental research/Hydrogen utilization efficiency分类
能源科技引用本文复制引用
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):35-42,8.基金项目
国家重点研发计划项目(2021YFB4000604) （2021YFB4000604）
安徽省高校杰出青年科研项目(2022AH020013). （2022AH020013）
