4.7 Article

Sustainable steel through hydrogen plasma reduction of iron ore: Process, kinetics, microstructure, chemistry

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Summary: Steel, as the most important material class in terms of volume and environmental impact, is the largest single industrial greenhouse gas emission source, with 30% of global CO2 emissions coming from its primary production. Hydrogen is seen as an attractive alternative reductant due to its potential to reduce these emissions. This study provides a multi-scale structure and composition analysis of iron reduced from hematite with pure H-2, shedding light on the complex pore- and microstructure evolution during reduction and the potential for improving understanding of microscopic transport and reduction mechanisms and kinetics.

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