ABSTRACT
Mass transfer by bubble dispersion in a slurry bubble column is widely occurred in biological, chemical and environmental applications. There is a great value in trying to intensify mass transfer with minimal energy consumption. In bubble column reactors, mass transfer phenomena are generally enunciated by phase resistance theory where solute is transferred from gas bubble to a continuous liquid phase. The gasinteracting downflow slurry bubble column is operating with liquid—solid slurry and gas. The efficiency of mass transfer of bubble column is quietly controlled by transport mechanism of species in the liquid viscous boundary layer around the bubbles. The penetration of liquid film is one of the important characteristic factors for adsorption of the gas onto the particle surface. Particles adhering to gas bubbles in the slurry can reduce or hinder coalescence of gas bubbles. The change of surface properties of the liquid affects the bubble coalescence and generation and the interfacial area and mass transfer rate in the column.
