Modelling the direct reduction of iron is challenging

 #Modelling the direct reduction of #iron is challenging – it involves complex, multi-scale processes like phase transformations and gas transport in porous pellets. Conventional models often rely on fitting to experimental conversion data, which can leave critical mechanisms underexplored.

Ömer Kerim Büyükuslu and his colleagues developed a thermodynamically grounded pellet-scale model for H₂/CO atmospheres that captures key reaction mechanisms with fewer fitting parameters, while strictly enforcing thermodynamic limits. By adding spatially resolved microstructural data into model calibration, they reveal how reduction progresses inside the pellet.

This approach provides a tool for understanding and optimising hydrogen-based ironmaking – a key step towards greener #steel production.

#openaccess paper: https://lnkd.in/d4D89bvk

source : Max Planck Institute for Sustainable saterials