About this Abstract |
| Meeting |
2027 TMS Annual Meeting & Exhibition
|
| Symposium
|
Fundamentals of Sustainable Metallurgy and Materials Science
|
| Presentation Title |
Advances in hydrogen plasma reduction of metal oxides through solid-state generated microwave power |
| Author(s) |
Prashant Barnwal, Vivek Pachchigar, Tanishka Kucheria, Henry Afful, Daniel Ellis, Brian Jurczyk, Jessica A. Krogstad, R. Mohan Sankaran |
| On-Site Speaker (Planned) |
Jessica A. Krogstad |
| Abstract Scope |
Hydrogen plasma reduction of metallic ores is a potential route toward next-generation ore reduction to lower process temperatures, increase rates, and avoid expensive beneficiation or pelletization steps. Here, we present a hydrogen plasma powered by microwave generated from solid-state amplifiers that we have applied to several metal oxide systems. We have demonstrated the effectiveness of this configuration on the reduction of hematite, magnetite and taconite thin films, as well as compressed pellets, and have taking meaningful steps towards scaling this technology up for use in a rotary kiln. In addition to the average reduction efficiency, a suite of microstructural characterization tools were deployed to understand the impact of ore impurities and morphologies, while gaining insight on the reaction kinetics and the best approaches for reducing a wider range of metallic ores. |
| Proceedings Inclusion? |
Undecided |