Abstract
Liquid-gas interfacial areas in a mobile bed contactor were investigated by using a chemical absorption method.
An empirical correlation equation covering a wide range of process variables was obtained as a function of gas and liquid holdups.
The effective interfacial area per unit expanded bed volume increases with increasing gas and liquid velocities to a maximum point and decreases beyond this point, while the effective interfacial area per unit liquid volume in the bed increases with increasing gas velocity, but the effect of the liquid velocity is small. When the gas and liquid velocities are 2.0-3.0 m/s and 0.01-0.03 m/s respectively, the effective interfacial area per unit expanded bed volume has a maximum point at a gas holdup of 0.6.
