Collect. Czech. Chem. Commun. 1982, 47, 1939-1949

Hydrodynamic characteristics of gas-liquid beds in contactors with ejector-type gas distributors

Jindřich Zahradník, František Kaštánek, Jan Kratochvíl and Milan Rylek

Institute of Chemical Process Fundamentals, Czechoslovak Academy of Sciences, 165 02 Prague 6-Suchdol


The effect of ejector-nozzle geometry on gas holdup and on the rate of interfacial mass transfer characterized by values of kLa was studied in a tower reactor with ejector-type gas distributor. It has been established that both gas holdup and kLa values are, in contactors of this type, unambiguously determined by the rate of energy dissipation in the place of gas-liquid dispersion formation i.e. in the ejector. No effect of nozzle type and geometry was observed on the character of dependences of gas holdup and kLa on the energy dissipation rate and consequently on the values of coefficients of empirical exponential-type relations used for experimental data correlation.