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Advancements in the development of green steel - making green steel with hydrogen

Monday, September 26, 2022

More than 1.8 billion tons of steel are produced every year, making it the most important alloy in terms of volume and impact. While steel is a sustainability enabler through lightweight car parts, wind farms and magnets, its primary production is not. Iron is reduced from ore using carbon. This produces >2t CO2/t of steel, standing for >30% of the global CO2 emissions in manufacturing. These emissions can be reduced when replacing carbon by hydrogen or its carriers as reductant.

This webcast will present some recent progress in understanding the key mechanisms of hydrogen-based direct reduction and hydrogen-based plasma reduction. The kinetics of the reactions strongly depend on mass transport kinetics, nucleation during the multiple phase transformations, the oxide’s chemistry and microstructure, and on damage and fracture associated with the phase transformation and mass transport phenomena occurring during reduction. Understanding these effects is key to make hydrogen-based reduction of iron ores commercially viable, enabling massive CO2 reductions.

You will learn:

  • How to make green steel by direct reduction and by plasma reduction
  • What are the bottleneck research questions in green steel making?
  • Which oxide and reductant feedstock types can be used in green steel making?

This webinar is available on demand at our Thinkific website. Click the link below to access this presentation, as well as all of our APT webinars. Registration is free.

Advancements in the Development of Green Steel On Demand.


About the presenter:
Dierk Raabe
Dr. Dierk Raabe
Managing Director

Max-Planck-Institut fuer Eisenforschung GmbH

Prof. Dierk Raabe studied music, metallurgy and metal physics. After his 1992 doctorate and 1997 habilitation at RWTH Aachen he received a Heisenberg fellowship by DFG and worked at Carnegie Mellon University (Pittsburgh). He joined Max Planck Society as a director in 1999. He works in computational materials science, sustainable metallurgy, alloy design, hydrogen and atom probe tomography.

He received the Leibniz award, 2 ERC Advanced Grants and the Acta Materialia Gold Medal Award. He is a professor at RWTH Aachen and at KU Leuven. He is a member of the National Academy Leopoldina.

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