Characterization of Liquid-Phase Distribution in 3D Printed Structured Packings with an Enclosed Column Wall

Autor: Reitze, Arnulf, Grünewald, Marcus, Riese, Julia
Zdroj: Industrial & Engineering Chemistry Research; January 2022, Vol. 61 Issue: 1 p740-746, 7p
Abstrakt: Additive manufacturing (AM) has become an important tool in the process technology in order to overcome constructive obstacles of conventional manufacturing processes. In the separation technology, lab-scale experiments are of great importance for the scale-up of separation columns. An increased wall effect and, consequently, a higher tendency for maldistribution result in uncertainties concerning the scale-up. In conventional columns, the packings are inserted and equipped with wall wipers to reduce this wall effect. AM allows us to print the packing with an enclosed wall, ensuring direct connection with the intention of reducing the wall flow. In this study, the liquid-phase distribution of two different types of AM packings was characterized and compared with that of conventional packings of the same type. Analysis of the local phase distribution showed a uniform distribution within the packings. The evaluation of the radial phase distribution, however, showed that the enclosed column wall does not reduce the wall flow if the wall wipers are dispensed.
Databáze: Supplemental Index