About this Abstract |
| Meeting |
2027 TMS Annual Meeting & Exhibition
|
| Symposium
|
Next Generation Electrometallurgical Technologies for Metal Extraction, Refining, and Recycling
|
| Presentation Title |
Carbon Emissions Assessment of Steelmaking Routes for 40Cr Steel |
| Author(s) |
Botao Xue, Biao Dong, Guangsheng Wei, CHAO FENG, Kai Dong, Rong Zhu |
| On-Site Speaker (Planned) |
Botao Xue |
| Abstract Scope |
The steel industry is a major source of global carbon emissions, making the selection of low-carbon production routes increasingly important. This study conducts life-cycle carbon accounting and techno-economic assessment of three routes for producing 40Cr steel: BF-BOF, Scrap-EAF, and DRI-EAF. Based on field operational data from two large Chinese steel enterprises, material and energy inputs, CO2 emissions, and production costs were quantified across resource extraction, transportation, and steel production. The results show that BF-BOF has the highest carbon emissions because of its intensive coal consumption. Scrap-EAF achieves substantial emission reductions, but its performance is sensitive to electricity carbon intensity, scrap quality, and scrap prices. DRI-EAF provides considerable decarbonization potential, while its economic competitiveness depends mainly on the reducing gas source, electricity supply, energy prices, and DRI cost. The findings support production-route selection and low-carbon investment in the steel industry. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Environmental Effects, Iron and Steel, Sustainability |