| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Energy Technologies and CO2 Management
|
| Presentation Title |
The Influence of Hydrogen Injection on the Reduction Process in the Lower Part of Blast Furnace: A Thermodynamic Study |
| Author(s) |
Zeji Tang, Zhong Zheng, Hongsheng Chen, Kun He |
| On-Site Speaker (Planned) |
Zeji Tang |
| Abstract Scope |
H2 was used to instead carbon in the blast furnace, which can reduce CO2 emissions, has been focused in iron and steel manufacturing. For the operation conditions of the reduction of Wustite by carbon in the bottom of the blast furnace, the effect of different H2 injection concentrations to the reduction process was investigated by the minimum Gibbs free energy principle. The results indicate that the equilibrium of the reaction system and the reduction of Wustite were changed due to H2 addition. Wustite was reduced completely at different operating pressures and H2 concentration as H2 concentration was smaller; oppositely, Wustite cannot be reduced completely, and the reduction rate of Wustite and the mole fraction of CO were decreased with increasing H2 concentration. The carbon content in the equilibrium state first decreases and then increases as increasing H2 concentration, and the mole fraction of CO2 was the opposite. |
| Proceedings Inclusion? |
Planned: |