Article Dans Une Revue Chemical Engineering Science Année : 2026

Cleaner steelmaking using biomass: A novel ironmaking process

Tao Wang
  • Fonction : Auteur
  • PersonId : 1587793
Olivier Mirgaux
Fabrice Patisson

Résumé

The iron-and steelmaking industry contributes significantly to greenhouse gas emissions because steel is produced in large quantities, and fossil coal is used as the energy source and reducing agent for this production. Substituting biogenic carbon from biomass for fossil coal could drastically reduce the contribution of the ironand steelmaking industry to global warming. Based on biomass, we propose a novel, breakthrough ironmaking process (BIORED), in which charcoal lumps and iron ore pellets are loaded at the top of a shaft reactor. CO, the reducing agent that converts iron oxide ore to metallic iron, is produced in situ by charcoal gasification. The exhaust gas mixture (CO-CO 2 ) is recycled for CO reuse and energy savings. The feasibility of such a process was investigated following a modeling approach that involves laboratory experiments. The results show that charcoal is devolatilized at the top and gasified at the bottom, whereas iron ore is reduced along the shaft, reaching a satisfactory metallization degree at the bottom. A specific experimental protocol was designed for the validation of the model, and the experimental results agreed with the computed results. The environmental performance of the BIORED-based steelmaking route was compared with that of the conventional route via life cycle assessment. The new route emits up to 8 times less CO 2 and has lower impacts on most of the other environmental categories.

Fichier principal
Vignette du fichier
Paru TW CES 25.pdf (8.73 Mo) Télécharger le fichier
Origine Fichiers éditeurs autorisés sur une archive ouverte
Licence

Dates et versions

hal-05287187 , version 1 (28-09-2025)

Licence

Identifiants

Citer

Tao Wang, Olivier Mirgaux, Fabrice Patisson. Cleaner steelmaking using biomass: A novel ironmaking process. Chemical Engineering Science, 2026, 319, pp.122319. ⟨10.1016/j.ces.2025.122319⟩. ⟨hal-05287187⟩
425 Consultations
518 Téléchargements

Altmetric

Partager

  • More