| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Pyrometallurgy: Developing Low Carbon Pathways
|
| Presentation Title |
Ferroalloy Production without Use of Fossil Carbon - Some Alternatives |
| Author(s) |
Eli Ringdalen |
| On-Site Speaker (Planned) |
Eli Ringdalen |
| Abstract Scope |
To reach the goal of fossil free ferroalloy production within 2050, several alternative materials and processes are investigated. Fast transition requires that the more mature technologies are implemented first. In parallel technologies with lower TRL level must be further developed. Substituting fossil carbon with biocarbon seems to be among the first to be implemented. How differences in key properties for these to reductants may affect operation of Mn-alloy and Si/FeSi furnaces will be discussed.
Pretreatment and prereduction by sustainable energy sources are another way for reducing fossil CO2 emission. Pretreatment of Mn-ores with CO-rich off-gases and with thermal solar heated air have been investigated and tested in pilot in the PreMa project. The effect of different temperatures and gas atmospheres have been studied. Effect on CO2 emissions on integrated pretreatment unit and furnaces are evaluated by comparing various scenarios in a HSC Sim model adapted for this purpose. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Sustainability, Pyrometallurgy, |