hydrogen plasma-The future of green steel makingA few articles on the subject of green steel making using Hydrogen Plasma torches. Seem to be a far superior process than using hydrogen alone in the blast furnace as being trialed by the Swedish consortium Hybrit. In that latter case a pipeline just to get hydrogen to the steel making plant had to be constructed due to the large amount of it required. A 70% reduction in hydrogen use can be achieved by the use of plasma torches
https://www.mpie.de/4564657/hydrogen-plasma-souza-ma
https://www.dierk-raabe.com/green-steel-reduction-of-iron-ore-by-hydrogen-plasma/