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.