Pressure drop and phase holdups in multi-stage turbulent bed contactor with downcomers

Downcomers are provided to each stage in Turbulent Bed Contactor (TBC) to extend the flooding limit and operating range. Experimental study has been undertaken to model the hydrodynamic behaviour of multistage Type I and Type II Turbulent Bed Contactor with downcomer attachment. Extensive data for various operational parameters including dynamic liquid hold-up, gas hold-up and bed pressure drop across each stage in the Turbulent Bed Contactors are obtained and empirical correlations are proposed.