氢冶金场景下规模化固态氢储运技术的开发及应用

Development and application prospect of large-scale solid-state hydrogen storage and transportation technology for hydrogen metallurgy

钢铁行业的氢冶金是未来氢能规模化应用的主要场景之一,炼铁炉利用氢气作为还原剂,替代传统的碳基还原过程,从而减少温室气体排放。在氢冶金过程中,建立高效可靠的氢储运产业链是成败的关键。简述了氢冶金背景和国内外氢气储存领域的研究进展和应用现状,对各种储存技术进行了简明分析。结合氢冶金工厂的特点,提出“气固相分离式固态氢储运技术”的方案,理论上可实现经济、安全、长距离、面向工业应用的大规模氢储运。未来可通过工程化手段实现大宗含氢物料的制备和存储运输,并与冶金或化工工厂的原料工艺流程实现有效衔接,对上游合金资源产业和可再生能源制氢产业也有重要推动作用。

Hydrogen metallurgy in the steel industry will be the main scenario for large-scale hydrogen application in the future.Blast furnaces can use hydrogen as a reducing agent to replace the traditional carbon-based reduction process,thereby reducing greenhouse gas emissions.In the process of hydrogen metallurgy,establishment of an efficient and reliable hydrogen storage industry chain is the key to success.A brief review on hydrogen metallurgy and worldwide development of hydrogen storage and transportation tech especially via solid-metal hydride is given in this paper.Combined with the demand on hydrogen storage and transportation for hydrogen metallurgy,a scheme for massive H2 usage in iron&steel plant via conceptional"gas-solid-gas phases"separate charge&discharge system by solid-metal hydride is proposed to reach a theoretically economic,safe,longdistance and scale-up industrial application.In the future,production and storage&transportation for massive H2-contained solid material for raw-material handling process in iron&steel or chemical plants will be realized by attainable engineering,which will propel revolutionary change in the upstream alloy industry and green H2-via-renewable industry.