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