Special Issue "Electric Arc Furnace Steelmaking"

A special issue of Metals (ISSN 2075-4701). This special issue belongs to the section "Extractive Metallurgy".

Deadline for manuscript submissions: 31 December 2023 | Viewed by 1078

Special Issue Editors

Department for Industrial Furnaces and Heat Engineering, RWTH Aachen University, Kopernikustr. 10, 52074 Aachen, Germany
Interests: EAF steelmaking; industrial furnaces; process modelling and simulation; process analysis and optimization
Special Issues, Collections and Topics in MDPI journals
Process Metallurgy Research Unit, University of Oulu, P.O. Box 4300, 90014 Oulu, Finland
Interests: hot metal pretreatments; electric arc furnaces; converter metallurgy; ladle metallurgy; continuous casting; process modelling and simulation; kinetics and thermodynamics of metallurgical processes
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Electric arc furnace steelmaking is one of the most important steelmaking routes and currently accounts for almost 30% of worldwide crude steel production. In certain regions and countries, the share is significantly higher, like e.g. North America with a share of electric arc furnace steelmaking of 65–70%. Considering the transformation concepts of the integrated steel mills to decarbonize their steel production and the increasing scrap availability in Asia, it can be expected that the share of scrap-based EAF steelmaking will continue to increase in the coming decades. Furthermore, the EAF serves as the basis for plans to melt DRI produced using hydrogen reduction to produce carbon-free steel.

In this Special Issue of Metals, we welcome contributions on recent advances in all aspects of electric arc furnace steelmaking including but not limited to EAF process optimization and efficiency, the application of new sensors and equipment, reduction of CO2 emissions and environmental impact, process modeling and simulation, scrap handling and alternative/new charge materials as well as slag properties and valorization. We also encourage the submission of reviews on EAF steelmaking technologies.

Dr. Thomas Echterhof
Dr. Ville-Valtteri Visuri
Guest Editors

Manuscript Submission Information

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  • electric arc furnace
  • steelmaking
  • sustainability
  • modelling
  • process optimization

Published Papers (1 paper)

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The Behavior of Direct Reduced Iron in the Electric Arc Furnace Hotspot
Metals 2023, 13(5), 978; https://doi.org/10.3390/met13050978 - 18 May 2023
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Hydrogen-based direct reduction is a promising technology for CO2 lean steelmaking. The electric arc furnace is the most relevant aggregate for processing direct reduced iron (DRI). As DRI is usually added into the arc, the behavior in this area is of great [...] Read more.
Hydrogen-based direct reduction is a promising technology for CO2 lean steelmaking. The electric arc furnace is the most relevant aggregate for processing direct reduced iron (DRI). As DRI is usually added into the arc, the behavior in this area is of great interest. A laboratory-scale hydrogen plasma smelting reduction (HPSR) reactor was used to analyze that under inert conditions. Four cases were compared: carbon-free and carbon-containing DRI from DR-grade pellets as well as fines from a fluidized bed reactor were melted batch-wise. A slag layer’s influence was investigated using DRI from the BF-grade pellets and the continuous addition of slag-forming oxides. While carbon-free materials show a porous structure with gangue entrapments, the carburized DRI forms a dense regulus with the oxides collected on top. The test with slag-forming oxides demonstrates the mixing effect of the arc’s electromagnetic forces. The cross-section shows a steel melt framed by a slag layer. These experiments match the past work in that carburized DRI is preferable, and material feed to the hotspot is critical for the EAF operation. Full article
(This article belongs to the Special Issue Electric Arc Furnace Steelmaking)
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