Development of a hydrodynamic model for air-lift reactors

In this payer, a 1D hydrodynamic model has been developed for gas hold-up a nd liquid circulation velocity prediction in air-lift reactors. The model i s based on momentum balance equations and has been adjusted to experimental data collected on a pilot plant reactor equipped with two types of gas dis tributors and using water and water/butanol as the liquid phase. Different techniques of signal analysis have also been applied to pressure fluctuatio ns in order to extract information about flow regimes and regime transition s. A good knowledge of the now pattern is essential to establish adequate c orrelations for the hydrodynamic model.