Reference : Tomographic measurement of liquid hold up and effective interfacial area distributions i...
Scientific journals : Article
Engineering, computing & technology : Chemical engineering
http://hdl.handle.net/2268/81654
Tomographic measurement of liquid hold up and effective interfacial area distributions in a column packed with high performance structured packings
English
Aferka, Saïd [Université de Liège - ULg > Département de chimie appliquée > Département de chimie appliquée >]
Viva, Aurora [Université de Liège - ULg > Département dechimie appliquée > Laboratoire de Génie chimique > >]
Brunazzi, Elisabetta mailto [University of Pisa, > Department of Chemical Engineering (DICCISM) > > >]
Marchot, Pierre mailto [Université de Liège - ULg > Département de chimie appliquée > Génie chimique - Systèmes polyphasiques >]
Crine, Michel mailto [Université de Liège - ULg > Département de chimie appliquée > Génie chimique - Opérations physiques unitaires >]
Toye, Dominique mailto [Université de Liège - ULg > Département de chimie appliquée > Génie de la réaction et des réacteurs chimiques >]
2011
Chemical Engineering Science
Pergamon Press - An Imprint of Elsevier Science
66
3413-3422
Yes (verified by ORBi)
International
0009-2509
Oxford
United Kingdom
[en] X-ray tomography ; Packed columns ; High performance structured packings ; Liquid Hold up distribution ; Liquid maldistribution ; Effective interfacial area
[en] In this paper, we report on the use of a high energy and high resolution X-ray tomograph to visualize and quantify the distribution of liquid hold up and of gas-liquid interfacial area in a 0.1m diameter column filled with MellapakPlus 752.Y packing elements. A standard air-water system at room temperature and atmospheric pressure was used. Tomographic measurements have been carried out in a large number of packing cross sections situated at different heights between the top and the bottom of the packed column, giving access to the evolution of axial profiles of liquid hold up and of gas-liquid interfacial area as a function of the operating conditions. Gas-liquid interfacial area values were also measured by a chemical method (CO2 absorption from air into a caustic solution). For the first time, a whole set of gas-liquid interfacial area values evaluated from tomographic images are interestingly compared with values measured by a chemical method. A comparison is also presented with literature models.
Communauté française de Belgique - CfB
Action de Recherche Concertée : Advanced Experimental Techniques and Cellular Automaton Modelling of Multiphase Systems - Application to distillation and reactive distillation columns
http://hdl.handle.net/2268/81654
10.1016/j.ces.2011.01.022

File(s) associated to this reference

Fulltext file(s):

FileCommentaryVersionSizeAccess
Restricted access
aferka CES 2011.pdfPublisher postprint1.6 MBRequest copy

Bookmark and Share SFX Query

All documents in ORBi are protected by a user license.