镁基固态储氢系统充氢过程产热分析与应用展望  

Analysis and Application Prospects of Heat Generation during Hydrogen Charging in Magnesium-Based Solid Hydrogen Storage Systems

作　　者：朱阳林 ZHU Yanglin(Shanghai Qingfeng Energy Technology Co.,Ltd.)

机构地区：[1]上海氢枫能源技术有限公司

出　　处：《上海节能》2025年第4期553-558,共6页Shanghai Energy Saving

基　　金：国家重点研发计划项目(2022YFB3803700);青海省重大科技专项(2023-GX-A2)。

摘　　要：镁基固态储氢是一种极具潜力的储氢技术。鉴于镁合金材料在充氢过程中会释放出可观的热量,研究设计了一套储氢系统,研究发现储氢合金每吸收1 kgH2释放的热量为36.37 MJ。这些热量一小部分用于维持储氢系统温度,大部分可以通过换热进行有效利用,其利用效率可达84%。此外,探讨了镁基固态储氢系统在绿氨合成中的应用潜力。镁基固态储氢系统可作为氢气缓存装置,调节不稳定的氢气供给,以满足合成氨连续生产的需求。在充放氢过程中,系统的热管理还能与氨合成的能量需求进行耦合,进一步提高整体能效。Magnesium-based solid state hydrogen storage is a potential hydrogen storage technology.In view of the fact that magnesium alloy materials release considerable heat during the hydrogen charging process,a hydrogen storage system was designed.The study found that the hydrogen storage alloy releases 36.37 MJ of heat for every 1 kgH_(2) absorbed.A small part of this heat is used to maintain the temperature of the hydrogen storage system,and most of it can be effectively utilized through heat exchange,and its utilization efficiency can reach 84%.In addition,the application potential of magnesium-based solid state hydrogen storage systems in green ammonia synthesis was discussed.The magnesium-based solid state hydrogen storage system can be used as a hydrogen buffer device to regulate unstable hydrogen supply to meet the needs of continuous production of synthetic ammonia.During the hydrogen charging and discharging process,the thermal management of the system can also be coupled with the energy requirements of ammonia synthesis,further improving the overall energy efficiency.

关 键 词：镁合金 固态储氢 反应焓 余热利用 

分 类 号：TK91[动力工程及工程热物理]