Objective
Increasing importance of reduced dust and air-polluting emissions (CO2, NOx) competes with minimum total EAF energy input and maximum energy efficiency. Therefore, it is desirable to avoid formation of NOx by controlled operation of the EAF. A consortium of three steel producers and two research institutes in Germany and Italy aims to investigate, understand and control the emission of NOx in EAF steel making.
The impact of various current EAF technologies on the NOx formation will be investigated (1) experimentally by EAF off-gas measurements at production of various steel grades with different EAF types and in pilot plants and (2) theoretically by modelling based on thermo-chemistry and computational fluid dynamic (CFD) simulations.