Mass transfer with chemical reaction in a froth bed reactor

A model to predict conversions in a froth bed reactor has been developed. T he model is then compared against the available experimental data on the ox idation of sodium sulfide in a foam bed contactor. The predictions using th e present model are also compared against those based on the model of a foa m bed reactor developed earlier. The predictions using the present model ag ree fairly well with the experimental data and, in some cases, are even in better quantitative agreement than the previous single stage model of a foa m bed reactor. The case of significant surface resistance due to surfactant has also been analyzed theoretically, obtaining analytical solutions for t he concentration profile and fractional gas absorption in a liquid froth sh ell.