Abstract
The scientific interest in the efficiency of packed bed columns is part of the world-wide pursuit of sustainability of processes. The maldistribution of the phases in the apparatus reduces the efficiency and makes difficult the prediction of process performance and scaling up. In the present work the operation of liquid distribution devices and high performance packings are investigated addressing the reasons for hydrodynamic non-uniformity of the liquid phase, including the formation and development of wall flow. Data are obtained from semi-industrial size experimental studies and mathematical modeling of the liquid flow through a layer of random Raschig Super-Ring packing. The effect of measures for ensuring uniform initial liquid distribution in the column apparatus is evaluated and the parameters in the mathematical model are identified.
Highlights
Packed columns are common for separation processes in food technologies
On the base of a physical experiment, a mathematical model is developed with the purpose to predict the liquid superficial velocity distribution and the wall flow in a packing bed of modern high performance metal packings Raschig Super-Ring (RSRM)
The present study aims at obtaining detailed experimental data on liquid distribution in metal RSRM 1.5" packing in a semi-industrial size column
Summary
Packed columns are common for separation processes in food technologies. In continuous distillation they are widely employed along with tray columns, the packed bed having lower pressure drop. The present study aims at obtaining detailed experimental data on liquid distribution in metal RSRM 1.5" packing in a semi-industrial size column.
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