Provision of Demand-Side Flexibility through the Integration of Power-to-Gas Technologies in an Electric Steel Mill

Johannes Dock, Stefan Wallner, Anna Traupmann and Thomas Kienberger
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Johannes Dock: Chair of Energy Network Technology, Department of Environmental and Energy Process Engineering, Montanuniversität Leoben, A-8700 Leoben, Austria
Stefan Wallner: Chair of Energy Network Technology, Department of Environmental and Energy Process Engineering, Montanuniversität Leoben, A-8700 Leoben, Austria
Anna Traupmann: Chair of Energy Network Technology, Department of Environmental and Energy Process Engineering, Montanuniversität Leoben, A-8700 Leoben, Austria
Thomas Kienberger: Chair of Energy Network Technology, Department of Environmental and Energy Process Engineering, Montanuniversität Leoben, A-8700 Leoben, Austria

Energies, 2022, vol. 15, issue 16, 1-22

Abstract: EAF steelmaking based on renewable electricity allows for low-CO 2 steel production. However, the increased integration of volatile renewable energies into the energy system requires the provision of flexibility options. In view of the substantial oxygen consumption in the steel mill, flexible on-site generation and storage holds a significant potential for demand-side management. The utilization of by-product oxygen from an electrolysis plant not only contributes to load flexibility but also generates a climate-neutral fuel. In the present study, different process layouts are developed based on state-of-the-art technologies. The proposed supply systems for oxygen, hydrogen, and synthetic natural gas are subjected to design and operational optimization and assessed with respect to the overall demand-side flexibility, carbon dioxide emission reduction, and economic viability.

Keywords: EAF steelmaking; demand-side management; oxygen production; pressure swing adsorption; electrolysis; res integration; climate neutrality (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
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