Kinetic Models for Reduction Reaction and Heat and Mass Transfer in Iron Ore

The aim of this research is to study heat and mass transfer in sponge iron reactor reduction zone through mathematical modeling arrangement and simulation. Kinetics equation of reduction of hematite to iron metal, methane reforming, and water gas shift reaction are taken into account in the model. After being validated with the reference data, the model is able to satisfactorily describe temperature and concentration profiles along reduction zone. The results also show that an increase in reduction gas temperature inlet will increase the metallization degree.