Department of Biochemical Engineering;
School of Chemical Engineering and Technology;
Tianjin University;
Tianjin 300072;
China;
Department of Biochemical Engineering;
School of Chemical Engineering and Technology;
Tianjin University;
Tianjin 300072;
China small scale isotropic mass transfer model was developed for the local liquid side mass transfer coefficients in gas-liquid-solid three-phase flow airlift loop reactor for Newtonian and non-Newtonian fluids. It is based onHigbie's penetration theory and Kolmogoroff's theory of isotropic turbulence withwhere ε1 is local rate of energy dissipation;
Af is the local microscale;
η1 is the local Kolmogoroff scale and D is the diffusion coefficient. The capability of the proposed model is discussed in the light of experimental data obtained from 12 L gas-liquid-solid three-phase flow airlift loop reactor using Newtonian and non-Newtonian fluids. Good agreement with the experimental data was obtained over a wide range of conditions suggesting a general applicability of the proposed model.;
