Axial Mixing of Liquid in Counter-Current Bubble Columns
Axial mixing of liquid in bubble columns with a counter-current flow is investigated experimentally. Experiments were conducted in vertical columns 0.07 m in diameter and 4.25 m in height, and 0.15 m in diameter and 2.7 m in height. Air and tap water were used as the gas and liquid phases, respectively. The axial dispersion coefficient of liquid increases with increasing gas and liquid velocities, and is discussed by comparing with models based on the turbulent mixing-length theory, which was developed by Matsumoto <I>et al</I>., and on the internal recirculating flow model extended by Wachi <I>et al</I>. in a concurrent bubble column.
- Journal of chemical engineering of Japan
Journal of chemical engineering of Japan 31(6), pp.1016-1019, 1998-12-01
The Society of Chemical Engineers, Japan