Melting Behavior of Conventional and Hydrogen-Reduced DRI in a Simulated EAF Steel Bath

Journal Article · 01 May 2022 · AISTECH

DOI: https://doi.org/10.33313/386/036 · OSTI ID:1960775

Govro, J. ^[1]; Meena, A. ^[2]; Chakraborty, S. ^[1]; Meshram, A. ^[3]; Korobeinikov, Y. ^[3]; Phillips, K. ^[1]; Athavale, V. ^[1]; Bartlett, Laura ^[1]; Smith, James ^[1]; Emdadi, Arezoo ^[1]; Seetharaman, S. ^[3]; O'Malley, Ronald J. ^[1]

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1. Missouri Univ. of Science and Technology, Rolla, MO (United States)
2. Denmark Technical University, Lyngby (Denmark)
3. Arizona State Univ., Tempe, AZ (United States)

The melting behavior of carbon-free direct reduced iron (DRI) produced by hydrogen reduction has been investigated in a simulated electric arc furnace (EAF) melting environment. A testing apparatus was created to document the melting rates under various bath conditions in slag and steel. This investigation is specific to pellets melted in a steel bath. A model was developed to simulate the shell growth and melting rate of a non-reactive DRI pellet in molten steel. Data acquired from preliminary experiments are utilized to validate the model. This investigation sheds light on the potential effects of melting hydrogen-reduced DRI in the EAF.

• Research Organization: Missouri Univ. of Science and Technology, Rolla, MO (United States)
• Sponsoring Organization: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Office of Sustainable Transportation and Fuels. Hydrogen and Fuel Cell Technologies Office (HFTO)
• Contributing Organization: Arizona State Univ., Tempe, AZ (United States); National Renewable Energy Laboratory (NREL), Golden, CO (United States); Nucor; Air Liquide; Linde; Gerdau; Steel Dynamics; ArcelorMittal; Danieli
• Grant/Contract Number: EE0009250
• OSTI ID: 1960775
• Journal Information: AISTECH, Vol. 1; Conference: AISTech 2022 Proceedings of the Iron and Steel Technology Conference, Pittsburgh, PA (United States), 16-18 May 2022,; ISSN 1551-6997
• Publisher: Association for Iron & Steel TechnologyCopyright Statement
• Country of Publication: United States
• Language: English