Reference : Determination of liquid hold-up and flow distribution inside modular catalytic structure...
Scientific journals : Article
Engineering, computing & technology : Chemical engineering
http://hdl.handle.net/2268/83744
Determination of liquid hold-up and flow distribution inside modular catalytic structured packings
English
Viva, Aurora [Université de Liège - ULg > Département de Chimie appliquée > Laboratoire de Génie chimique > >]
Aferka, Saïd [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 >]
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 >]
Brunazzi, Elisabetta [University of Pisa > Department of Chemical Engineering (DICCISM) > > >]
2011
Chemical Engineering Research & Design : Transactions of the Institution of Chemical Engineers Part A
Institution of Chemical Engineers
89
1414-1426
Yes (verified by ORBi)
International
0263-8762
[en] Liquid hold-up ; Catalytic structured packing ; Katapak-SP ; X-ray tomography ; Flow distribution
[en] This paper presents the results of a study carried out to examine liquid hold-up and flow distribution in a 0.1m internal diameter column filled with catalytic structured packing Katapak-SP.
Information has been gathered at local scale by means of a non-intrusive high energy X-ray
tomograph. Measurements have been carried out in a large number of packing cross sections
situated at different heights between the top and bottom of the packed column, giving access to the evolution of axial profiles of liquid hold-up in the open channels (separation zone) and in the
catalytic baskets (reaction zone) as a function of the liquid load. The total hold-up, evaluated by
averaging local tomographic values over the packed volume, was compared with global hold-up
data obtained by traditional methods, like draining and RTD measurements.
A method was also proposed to deduce the distribution of liquid flowrate, between the reaction and the separation zones, from hold-up distribution measured by tomography. The methodology was validated by comparison with experimental data obtained by collecting separately the liquid flowing out of the two zones at the bottom of the packed bed. The obtained results are invaluable to improve the description of hydrodynamics in rate based performance 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
Researchers ; Professionals ; Students
http://hdl.handle.net/2268/83744

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