(1366) Green Iron- and Steelmaking -Pure Iron and Possibility of Direct Steelmaking through Hydrogen Reduction-

摘要

Hydrogen itself is not a primary energy and needs energy for its production, which means that CO2 will be exhausted during the production process, more or less. However, when a Green Hydrogen can be produced, it is a best way to use the hydrogen instead of carbon. In this paper, two kinds of iron ore were reduced and melted both under hydrogen and carbon atmosphere. The obtained iron metal under hydrogen atmosphere was quite pure one. The impurities in the metal were chemically and thermodynamically analyzed. The characteristics and benefits of hydrogen reduction were discussed in comparison with the carbon reduction. The image of hydrogen furnace not depending on the fossil fuels was presented.