By coupling Higbie gas-liquid mass transfer model

Euler three-dimensional transient gas-liquid flow model was established for a six impeller self-inducing reactor with gas distributor. The model was used to simulate the flow field

gas holdup

gas-inducing rate and dissolved oxygen transfer of the gas-liquid mixing process with CFX software. The flow characteristics of the reactor

gas-liquid dispersion performance

gas induction and gas-liquid mass transfer properties were obtained. The analysis on flow pattern characteristics and dissolved oxygen transfer performance at horizontal and vertical positions of the reactor were made

comparing and analyzing the prediction of gas holdup and gas-inducing rate based on experimental data and empirical correlations. Six impeller rotor and gas distributor could obtain uniform gas-liquid mixing. Deviations of gas hold-up and gas-inducing rate predictions from experimental values were 5.2% and 17.6% respectively. Dissolved oxygen transfer and mixing performance near the wall at the bottom of the reactor was bad.