Spanish engineering firm Sarralle has completed a green hydrogen combustion system at ArcelorMittal’s Olaberria steel plant, marking a major milestone in industrial decarbonization.
Developed in partnership with Nippon Gases, the new system replaces natural gas burners with hydrogen-based oxy-fuel technology, using pure oxygen and renewable hydrogen.
Hydrogen combustion emits only water vapor, offering a zero-carbon reheating model.
Reheating furnaces typically account for up to 80% of a steel plant’s fuel use — switching to hydrogen significantly reduces CO₂ emissions.
The project demonstrates that hydrogen technology is ready for industrial-scale deployment, supporting the steel sector’s transition toward a low-carbon future.
VietnamSteel by Hoa Sen Group
