Investigation of bubble breakup and coalescence in a packed-bed reactor - Part 2: Development of a new bubble breakup and coalescence model

► New mechanistic models for bubble breakup and coalescence in a packed bed were developed. ► The bubble size predictions from new models were compared with the experimental data. ► Predicted he median bubble size with the present model compared well with data. ► Breakup and coalescence coefficients were obtained from experiments and mechanistic models.