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The homogeneity of immiscible liquid–liquid dispersion in a vessel agitated by Rushton turbine

Formánek Roman, Šulc Radek

Chemical and Process Engineering

2021

Vol. 42, nr 3

209-–222

The homogeneity of an immiscible liquid–liquid system was investigated in a baffled vessel agitated by a Rushton turbine. The dispersion homogeneity was analyzed by comparing Sauter mean diameters and drop size distribution (DSD) determined in different measured regions for various impeller speeds. The sizes of droplets were obtained by the in-situ measurement technique and by the Image Analysis (IA) method. Dispersion kinetics was successfully fitted with Hong and Lee (1983) model. The effect of intermittency turbulence on drop size reported by Bałdyga and Podgórska (1998) was analyzed and the multifractal exponent 𝛼𝐹𝑇 was evaluated.