[en] In this study, X-ray computer tomography and light-induced fluorescence were applied to investigate the morphology of liquid flow inside structured packings. Fluid dynamic parameters such as liquid holdup and wetted surface were determined to study the effect of the variation of viscosity and liquid load. Flow patterns inside the packing were identified and categorized. Liquid film thickness and its distribution were analyzed on single sheets. For both methods, the measured holdup values are in good agreement, despite differences in the techniques of measurement. For the flow patterns and their relative contribution, as well as mean liquid film thickness, a strong dependency on the varied parameters was found. Furthermore, the
density function of film thickness distribution changed characteristically with liquid load and viscosity. The complementary use of tomography and optical assessment allowed an improved insight into flow phenomena and the observed interdependency of physical, geometric, and operational parameters.
Disciplines :
Chemical engineering
Author, co-author :
Bradttmöller, Christian; Technische Universität Braunschweig > Institute for Chemical and Thermal Process Engineering
Janzen, Anna; University of Paderborn > Chair for Fluid Process Engineering
Crine, Michel ; Université de Liège - ULiège > Département de chimie appliquée > Département de chimie appliquée
Toye, Dominique ; Université de Liège - ULiège > Département de chimie appliquée > Génie de la réaction et des réacteurs chimiques
Kenig, Evgeny; University of Paderborn > Chair for Fluid Process Engineering
Scholl, Stephan; Technische Universität Braunschweig > Institute for Chemical and Thermal Process Engineering
Language :
English
Title :
Influence of viscosity on Liquid Flow Inside Structured Packings
Publication date :
2015
Journal title :
Industrial and Engineering Chemistry Research
ISSN :
0888-5885
eISSN :
1520-5045
Publisher :
American Chemical Society, Washington, United States - District of Columbia
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