| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Energy Technologies and CO2 Management
|
| Presentation Title |
Influence of Coal Reactivity on Carbon Composite Briquette Reaction in Blast Furnace |
| Author(s) |
Huiqing Tang, Zi Yu, Tao Rong |
| On-Site Speaker (Planned) |
Huiqing Tang |
| Abstract Scope |
Charging carbon composite briquette(CCB) in blast furnace(BF) is considered to be a state-of-the-art technology to decrease energy consumption and reduce CO2 emission for BF ironmaking. In this research, the influences of ore and coal reactivities on the reaction behavior of the CCB in actual BF were examined by the numerical investigation. Results showed that the development of the CCB reaction in BF included six stages. The initial temperature of CCB reaction being effective for BF energy saving was 1000 K and the main effective stage for BF energy-saving was stage 4 (CCB self-reduction). The CCB reaction behavior in BF did not observably change by increasing iron-ore reducibility. However, by decreasing iron-ore reducibility or increasing coal reactivity, the main effective stage for energy-saving shifted to stage 5 (CCB partial self-reduction and CCB carbon gasification by BF gas). By decreasing coal reactivity, charging CCB was less effective for BF energy-saving. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Iron and Steel, Sustainability, Modeling and Simulation |