Chemical and Process Engineering

Abstract

The aim of the research presented in this paper was to determine the effect of vessel scale on gas holdup in gas-liquid systems. The agitated vessel with internal diameters of T = 0.288 m and T = 0.634 m was filled with a liquid up to the height H = T. For the purpose of measurements, two high-speed impellers were used: Rushton turbine impeller (RT) or A 315 impeller. Within the study, the following parameters were altered: superficial gas velocity, impeller speed, impeller type and concentration of aqueous sucrose solution. In addition, influence of the vessel scale on gas hold-up value was analysed. Experimental results were mathematically described. Equations ( 5)-( 7) do not have equivalents in the literature.