Ali, Mohammed Liaket und Fradet, Quentin und Riedel, Uwe (2024) Particle-resolved computational modeling of hydrogen-based direct reduction of iron ore pellets in a fixed bed. Part I: Methodology and validation. International Journal of Hydrogen Energy, Seiten 332-343. Elsevier. doi: 10.1016/j.ijhydene.2024.09.028. ISSN 0360-3199.
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Kurzfassung
In the pursuit of more sustainable steelmaking, stakeholders are engaging in a transformative exploration of hydrogen-based direct reduction as an alternative to conventional blast furnaces. As a bridging step between single iron ore pellets and industrial shaft furnaces, direct reduction modeling in a fixed bed configuration can play a central role for subsequent process optimization. However, this task involves numerous challenging steps: generation of a realistic packed bed structure along with a good quality mesh and, foremost, reliable transport and kinetic processes for the individual pellets. Therefore, the present work formulates a sound methodology to progress from single particle considerations to 3D-CFD simulations of iron ore reduction using hydrogen in fixed beds, further supported by validations regarding the bed structure and the overall reduction against experimental data from the literature of a 500 g iron ore bed. The current results offer new insights into the direct reduction process, revealing, for instance, the non-uniform reduction of pellets within the bed, the presence of gas pockets, or the importance of the temperature deviation due to the endothermic reduction of iron oxides with hydrogen.
elib-URL des Eintrags: | https://elib.dlr.de/206315/ | ||||||||||||||||
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Dokumentart: | Zeitschriftenbeitrag | ||||||||||||||||
Titel: | Particle-resolved computational modeling of hydrogen-based direct reduction of iron ore pellets in a fixed bed. Part I: Methodology and validation | ||||||||||||||||
Autoren: |
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Datum: | 9 September 2024 | ||||||||||||||||
Erschienen in: | International Journal of Hydrogen Energy | ||||||||||||||||
Referierte Publikation: | Ja | ||||||||||||||||
Open Access: | Ja | ||||||||||||||||
Gold Open Access: | Nein | ||||||||||||||||
In SCOPUS: | Ja | ||||||||||||||||
In ISI Web of Science: | Ja | ||||||||||||||||
DOI: | 10.1016/j.ijhydene.2024.09.028 | ||||||||||||||||
Seitenbereich: | Seiten 332-343 | ||||||||||||||||
Verlag: | Elsevier | ||||||||||||||||
ISSN: | 0360-3199 | ||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||
Stichwörter: | Fixed bedCFDIron oxide pelletHydrogenDirect reduction process | ||||||||||||||||
HGF - Forschungsbereich: | keine Zuordnung | ||||||||||||||||
HGF - Programm: | keine Zuordnung | ||||||||||||||||
HGF - Programmthema: | keine Zuordnung | ||||||||||||||||
DLR - Schwerpunkt: | Digitalisierung | ||||||||||||||||
DLR - Forschungsgebiet: | D - keine Zuordnung | ||||||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | D - keine Zuordnung | ||||||||||||||||
Standort: | Zittau | ||||||||||||||||
Institute & Einrichtungen: | Institut für CO2-arme Industrieprozesse | ||||||||||||||||
Hinterlegt von: | Ali, Mohammed Liaket | ||||||||||||||||
Hinterlegt am: | 11 Sep 2024 10:19 | ||||||||||||||||
Letzte Änderung: | 16 Sep 2024 13:11 |
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