CFD Study of an Energiron Reactor Fed With Different Concentrations of Hydrogen

Alessandro Martinis Vice President Ironmaking DRI, Danieli & Officine Meccaniche, Buttrio (UD), Italy a.martinis@danieli.it Climate change is one of the defining challenges of our era and the iron and steel sector is responsible for approximately 7% of global CO2 emissions. Innovative hydrogen-based technologies are being developed to decrease the carbon footprint of tomorrow’s steelmaking plants. In this context, Energiron is a mature direct reduction technology that maximizes the efficient use of hydrogen for direct reduced iron (DRI) production. This paper presents a computational fluid dynamics analysis of an Energiron reactor operating with different levels of hydrogen; the resulting momentum, species and enthalpy balances for both the DRI and the gas phases are described and analyzed.