Hydrogen Plasma and Arc-based Technologies (HyPAT)
The primary objective of this research area is to investigate and further develop arc-based technologies for reduction, smelting, and refining processes in iron- and steelmaking. The steel industry is currently undergoing a significant transformation, driven by its contribution of approximately 7–9 % of global CO₂ emissions. Regardless of which technologies will prevail in the future arc-based systems will remain essential for melting or reducing feed materials to produce high-quality steels.
Therefore, this research area is dedicated to studying the fundamental principles of the electric arc, electric smelter, and hydrogen plasma smelting reduction process. Experimental investigations are carried out using two reactor systems.
The laboratory-scale arc facility, located at the Chair of Ferrous Metallurgy, enables the processing of up to 300 g of input material. It serves as a platform for initial screening experiments and detailed arc characterization.
The multi cathode furnace, designed for larger-scale investigations, allows the processing of up to 15 kg of material. Equipped with three angle- and height-adjustable electrodes and a tiltable furnace vessel for material pouring, it facilitates scale-up trials and extended experimental campaigns to explore process behavior under more industrially relevant conditions.
The multi cathode furnace, designed for larger-scale investigations, allows the processing of up to 15 kg of material. Equipped with three angle- and height-adjustable electrodes and a tiltable furnace vessel for material pouring, it facilitates scale-up trials and extended experimental campaigns to explore process behavior under more industrially relevant conditions.
Current research topics include:
- Melting behavior of DRI, H-DRI, HBI, and scrap
- Sulfur and phosphorus distribution mechanisms
- Carburization behavior
- Characterization and performance of smelter electrodes
- Detailed kinetic investigations of reduction mechanisms
- Utilization of oxidic alloying elements
For further information, inquiries, or thesis topics within this research area, please contact DI Dr.mont. Daniel Ernst.



