Operation of Reheating Furnace With 100% Green Hydrogen

This paper will describe the technical details on the conversion of a steel rolling mill reheating furnace to allow its operation with 100% green hydrogen and oxy-combustion. Reheating furnaces account for 75-80% of the natural gas consumption of mini-mills, and therefore of their CO2 emissions. The conversion of the reheating furnace to operate with 100% hydrogen is crucial to achieve the complete decarbonization of mini-mills. Sarralle has already built a reheating furnace prototype at scale in order to study different burner technologies and refractory materials as well as different steel grades under the new combustion atmospheres.

Itsaso Auzmendi | Sarralle
 

Julen Garmendia-Toledo | Sarralle
 

Juan Blanco-Requesens | Sarralle
 

Joaquin de Diego Rincon | Nippon Gases Euro-Holding
 

Eider del Molino Duran | Tecnalia, Basque Research and Technology Alliance
 

Juan Palacios Taubmann | Tecnalia, Basque Research and Technology Alliance
 

Borja Peña | Tecnalia, Basque Research and Technology Alliance