Reference : Investigation of liquid flow pattern inside a structured packing using X-ray tomography
Scientific congresses and symposiums : Paper published in a book
Engineering, computing & technology : Chemical engineering
http://hdl.handle.net/2268/121917
Investigation of liquid flow pattern inside a structured packing using X-ray tomography
English
Aferka, Saïd [Université de Liège - ULg > Département de chimie appliquée > Département de chimie appliquée >]
Steube, Julia [University of Paderborn > Department of Fluid Process Engineering > > >]
Janzen, Anna [University of Paderborn > Department of Fluid Process Engineering > > >]
Kenig, Evgeny [University of Paderborn > Department of Fluid Process Engineering > > >]
Crine, Michel mailto [Université de Liège - ULg > Département de chimie appliquée > Génie chimique - Opérations physiques unitaires >]
Marchot, Pierre mailto [Université de Liège - ULg > Département de chimie appliquée > Département de chimie appliquée >]
Toye, Dominique mailto [Université de Liège - ULg > Département de chimie appliquée > Génie de la réaction et des réacteurs chimiques >]
2012
Proceedings of the 6th International Symposium on Process Tomography, Cape Town, South Africa
8
Yes
No
International
978-0-620-53039-2
6th International Symposium on Process Tomography
26-28 mars 2012
UNiversity of Cape Town
Cape Town
South Africa
[en] X-ray tomography ; Hydrodynamics ; Liquid viscosity ; Liquid hold-up ; Gas-liquid interfacial area ; Liquid flow morphology ; Structured packing
[en] This work focuses on the analysis of X-ray tomographic images of liquid flow distribution within a 1 m high packed column of 10 cm diameter, filled with four Mellapak Plus 752Y elements. Tomographic measurements are performed at various column heights for different liquid flowrates. Water and aqueous glycerine solutions are successively used as working liquids in order to quantify the influence of liquid viscosity on the spatial distribution of hydrodynamic quantities such as liquid holdup and gas-liquid interfacial area. Logically, both liquid holdup and gas-liquid interfacial area increase with liquid flow rate. An increase of liquid viscosity has also a positive impact on liquid holdup and on gas-liquid interfacial area. In all cases, the measured quantities are not constant along the bed height, leading to fluctuating axial profiles. Depending on the liquid viscosity and flowrate, different liquid flow patterns (films, rivulets, flooded channels) are observed in the irrigated cross section images. A method based on morphological techniques is proposed to quantify the fraction of liquid flow which belongs to each flow pattern.
Researchers ; Professionals
http://hdl.handle.net/2268/121917

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