Non-isothermal kinetic model for reduction of ferrous oxide with hydrogen and carbon monoxide

A non-isothermal mathematical model has been developed for study of the reduction process of ferrous oxide with gases. The model includes heterogeneous chemical kinetic expressions and equations of heat and mass transfer. The numerical scheme based on the finite volume method in an implicit formulation is used for solving the differential equations. The model has been validated with experimental results from the literature. The numerical results indicated reaction enthalpy was influenced transiently by temperature. The gas concentration profile inside ferrous oxide particle developing with an elapse of time can also be simulated by the model.