About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
External Field-Intensified Materials Processing
|
| Presentation Title |
Preparation of Direct Reduced Iron from Basic Oxygen Furnace Dust and Blast Furnace Dust by Microwave-Carbon-Hydrogen Coupled Reduction |
| Author(s) |
Lin Xiong, Zhiwei Peng, Shaochang Nie, Tianle Yin |
| On-Site Speaker (Planned) |
Tianle Yin |
| Abstract Scope |
Zinc-containing dusts, a major byproduct of steel production, have attracted growing research attention driven by escalating environmental concerns and stricter ecological regulations. In alignment with the dual-carbon strategy, this work presents a novel method for processing basic oxygen furnace dust (BOFD) and blast furnace dust (BFD) by employing biochar and bio-syngas. The effect of the C/O molar ratio on the reduction performance of the dusts were systematically investigated. When the C/O molar ratio increased, the iron metallization degree rose from 89.82% to 93.81% and the zinc volatilization percentage improved from 97.90% to 99.70%, with the average iron particle size increasing from 5.46 μm to 11.63 μm. At the optimal C/O molar ratio of 1.0, the iron metallization degree, zinc volatilization percentage, and average iron particle size reached 93.76%, 99.70%, and 10.61 μm, respectively. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Pyrometallurgy, Recycling and Secondary Recovery, Iron and Steel |