In spite of the fact that tremendous progress is being made in understanding the performance of both random and structrure packing in distillaiton, it is a long way from beşng able to predict from first principles, the efficiency, capacity and pressure drop of a tower packing using thermodynamic and thermo-physical properties of the chemical system being distilled, as well as the physical parameters of the packing which aids the mass transfer. Those predictive methods that are available in the open literature have limited or poor accuracy if applied to a wide variety of chemical system and tower packings....
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