Abstract
Rigorous and reduced heterogeneous dynamic models for fixed bed catalytic reactor were developed in this work. The models consist on mass and heat balance equations for the catalyst particles as well as for the bulk phase of gas. They also consider the variations in the physical properties and in the heat and mass transfer coefficients, the continuity equation for the fluid phase as well as the heat exchange through the jacket of the reactors. The models were used to describe the dynamic behaviour of the ethanol oxidation to acetaldehyde over Fe-Mo catalyst. The proposed models were able to predict the main characteristics of the dynamic behaviour of the reactors, and it was possible to compare the results obtained in simulations of models with different degrees of formulation complexity, thus indicating which model is more suitable for a specific application. This information is important for the real time integration implementation procedure.
Published Version
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