Conveners
Hydrogen-Based Direct Reduction (H-DRI)
- Klaus Krüger (Ingenieurbüro Klaus Krüger)
Hydrogen-Based Direct Reduction (H-DRI)
- Enrico Malfa (Tenova SpA)
Description
5.1.1
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Dr Peter Juchmann (Salzgitter Flachstahl GmbH)07/10/2025, 10:50Hydrogen-based SteelmakingKeynote Presentation
Salzgitter AG is consistently pushing ahead with the SALCOS (Salzgitter Low CO2 Steelmaking) project on its way to climate friendly primary steel production. In this regard Salzgitter Flachstahl GmbH is gradually converting its crude steel capacity from the conventional blast furnace-converter route to a nearly CO2-free direct reduction-electric arc furnace route.
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With the new SALCOS... -
Manish Kumar Kar (Norwegian University of Science and Technology)07/10/2025, 11:10Hydrogen-based SteelmakingOral Presentation
To reduce CO₂ emissions in iron and steel production, the industry is transitioning towards hydrogen-based reduction. However, a key challenge lies in the sustainable production of hydrogen, as most hydrogen is currently derived from hydrocarbon decomposition. Additionally, during the smelting of Direct Reduced Iron (DRI) in steelmaking, a certain amount of carbon in DRI feed is beneficial. In...
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Dr Ismael Matino (Scuola Superiore Sant'Anna - TeCIP Institute - ICT-COISP)07/10/2025, 11:30Hydrogen-based SteelmakingOral Presentation
Integrated steelworks are deeply affected by the decarbonization transition of the steelmaking sector required by the European Green Deal. One of the most promising solutions is their conversion from blast furnace-basic oxygen furnace based plants to direct reduction shaft furnace-electric arc furnace based routes using hydrogen enriched reducing gases. However, this conversion involves...
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Edoardo D'Amanzo (RINA Consulting - CSM)07/10/2025, 11:50Hydrogen-based SteelmakingOral
The transition to hydrogen-based direct reduction (H-DRI) is a crucial step in decarbonizing the steel industry. The ‘Safe H-DRI' project aims to optimize the production, loading, transport, unloading and storage of Hyrogen-based-DRI (H-DRI), addressing key challenges related to its stability, metallurgical properties, and industrial applicability.
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This study investigates the hydrogen-based... -
F Cirilli (Rina Consulting Centro Sviluppo Materiali)07/10/2025, 12:10Hydrogen-based SteelmakingOral
The steel industry is committed to eliminating fossil fuels to reduce CO₂ emissions, requiring innovative technologies and alternative reducing agents. Hydrogen-based direct reduction is currently the most viable solution for transforming iron ore into metallic iron with minimal environmental impact.
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This study investigates the kinetic mechanisms governing the hydrogen-based direct reduction... -
Marco Ficili (Politecnico di Milano)07/10/2025, 14:30Hydrogen-based SteelmakingOral
Hydrogen-based direct reduced iron (H₂-DRI) represents a promising pathway for significantly reducing CO₂ emissions in iron production. Achieving economic competitiveness for H₂-DRI depends on lowering hydrogen production costs, which can be addressed through: (i) high-efficiency Solid Oxide Electrolyzer Cells (SOECs) and (ii) the flexible operation of both SOEC and DRI plants.
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First, this... -
Dr Ralf Wolters (VDEh-Betriebsforschungsinstitut GmbH)07/10/2025, 14:50Hydrogen-based SteelmakingOral
In the Real laboratory ‘H2Stahl’ a Direct Reduction test plant will be engineered, build-up and investigated. The actual status of this project shall be presented to the audience.
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The German research project is being carried out by the coordinator VDEh-Betriebsforschungsinstitut GmbH (BFI) in Düsseldorf in close co-operation with thyssenkrupp Steel Europe AG in Duisburg. The test plant will... -
Mr filippo cirilli (Rina Consulting Centro Sviluppo Materiali)07/10/2025, 15:10Hydrogen-based SteelmakingOral Presentation
Steel production decarbonization requires innovative technologies to reduce (up to eliminate) fossil materials in the whole chain. This implies alternative iron ore reducing process, new operating practices in the Electric Furnace, new combustion technologies in the downstream processes.
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A RINA-CSM project "Hydrogen: innovative plants and related processes for the production of green steel... -
Roberto Scaccabarozzi (Laboratorio Energia & Ambiente Piacenza)07/10/2025, 15:30Hydrogen-based SteelmakingOral
With a CO2 emission intensity of 1.9 tCO2/tcrude steel (including both direct and indirect emissions) and a primary energy consumption of 21 GJ/tcrude steel, steel production accounts for the emission of 3.74 GtCO2/y, representing approximately 10% of total manmade emissions. The production of direct reduced iron (DRI), which relies on natural gas to convert iron ore into metallic iron,...
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Sebastiaan van Dorp (Calix)07/10/2025, 15:50Hydrogen-based SteelmakingOral Presentation
Calix’s ZESTY technology is a flash reduction process based on the indirectly heated Calix Flash Calcination (CFC) technology. In 2024, Calix completed a second testing campaign (over 100 runs) with 6 Australian-sourced hematite/goethite iron ores.
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The campaign demonstrated it is possible to achieve commercially viable metallisation degrees for a range of ores approaching near-theoretical...