MODELING OF FALLING FILM REACTORS

An improved mathematical model for falling film reactors is presented. Effects of liquid film turbulence, gas phase heat and mass transfer r esistances, gas-liquid interfacial drag, exothermic chemical reaction and heat transfer within the system, as well as volatility of liquid f ilm are considered. The model predicts liquid phase chemical conversio ns and the interfacial temperatures along the reactor length. Model pr edictions agreed well with data from both laboratory and industrial sc ale reactors.