About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Energy Technologies and CO2 Management: Resource Efficient Processes
|
| Presentation Title |
Reduction of carbon composite briquette under CO-CO2-N2 atmosphere with H2 mixing |
| Author(s) |
Huiqing Tang, Haoting Ma |
| On-Site Speaker (Planned) |
Huiqing Tang |
| Abstract Scope |
Charging carbon composite briquettes (CCBs) and injecting H₂-rich gases are two effective strategies for reducing CO₂ emissions in blast furnace (BF) ironmaking. In this study, the reduction behavior of CCBs was investigated under a CO–CO₂–N₂ atmosphere with hydrogen addition. The CCBs used in this research consisted of 24.27 wt.% Fe₃O₄, 48.21 wt.% FeO, 0.42 wt.% metallic Fe, and 17.33 wt.% carbon. Reduction tests were conducted in a thermogravimetric analyzer using a gas mixture of 10% H₂, 32% CO, 8% CO₂, and 50% N₂, with a heating rate of 6 K/min. The mass-loss curve obtained during reduction was analyzed using a mathematical model to interpret the reduction process. Samples collected at different reaction times were examined by SEM and EDS to reveal the microstructural evolution. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Iron and Steel, Sustainability, Pyrometallurgy |