Plasma burners in decarbonization of iron ore pelletizing
B. Kelly

Rio Tinto IOC, Canada

Abstract

Induration of high-quality iron ore pellets requires significant thermal energy to achieve the desired physical and pyrometallurgical properties. This energy is typically supplied from the interior of the pellet through additives like coke, as well as from the exterior by combustion of a carbon-based fuel like heavy fuel oil. As the world advances towards a carbon-free future, IOC is exploring substitutes for all carbon sources such as electrical heating with plasma burners in the induration furnaces. IOC’s decarbonization pathway will be highlighted along with the experience gained during the pilot trial of four plasma torches at IOC’s pelletizing plant.