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Abstract:

Temporal variations of the liquid holdup in a mini-pilot scale trickle bed reactor cold-mockup, induced by an ON-OFF liquid flow modulation strategy of operation, are explored at different axial positions. The reactor is packed with porous beads of γ - Al2 O3 and the liquid holdup is approximately estimated with a conductimetric technique, using probes that mimic the packing. The effects of the liquid and gas superficial velocities, the bed depth and the cycling parameters, cycle period and split, on the liquid holdup modulation are examined for a wide range of conditions. For slow and intermediate cycle periods, the liquid holdup time dependence observed during the dry period is represented by an exponential function. The characteristic value of the decay is correlated to the examined variables. The correlation allows reconstruction of the liquid holdup time dependence along the column. © 2007 Elsevier Ltd. All rights reserved.

Registro:

Documento: Artículo
Título:Modulation of liquid holdup along a trickle bed reactor with periodic operation
Autor:Ayude, M.A.; Martínez, O.M.; Cassanello, M.C.
Filiación:INTEMA, CONICET, UNMDP. J.B. Justo 4302, 7600 Mar del Plata, Argentina
Dep. Ing. Química, UNLP - CINDECA, Calle 47 No 257, 1900 La Plata, Argentina
PINMATE, Dep. Industrias, FCEyN-UBA, Int. G'́uiraldes 2620, C1428BGA Buenos Aires, Argentina
Palabras clave:Hydrodynamics; Liquid flow modulation; Liquid holdup profiles; Periodic operation; Trickle-bed reactors; Approximation theory; Hydrodynamics; Parameter estimation; Porous materials; Exponential function; Liquid flow modulation; Periodic operation; Trickle bed reactor; Chemical reactors; Approximation theory; Chemical reactors; Hydrodynamics; Parameter estimation; Porous materials
Año:2007
Volumen:62
Número:21
Página de inicio:6002
Página de fin:6014
DOI: http://dx.doi.org/10.1016/j.ces.2007.06.027
Título revista:Chemical Engineering Science
Título revista abreviado:Chem. Eng. Sci.
ISSN:00092509
CODEN:CESCA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00092509_v62_n21_p6002_Ayude

Referencias:

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  • Ayude, M.A., (2006) Periodic operation of trickle-bed reactors: effect on catalytic wet oxidation of organic pollutants, , Tesis de Doctorado, Universidad Nacional de Buenos Aires, Argentina
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Citas:

---------- APA ----------
Ayude, M.A., Martínez, O.M. & Cassanello, M.C. (2007) . Modulation of liquid holdup along a trickle bed reactor with periodic operation. Chemical Engineering Science, 62(21), 6002-6014.
http://dx.doi.org/10.1016/j.ces.2007.06.027
---------- CHICAGO ----------
Ayude, M.A., Martínez, O.M., Cassanello, M.C. "Modulation of liquid holdup along a trickle bed reactor with periodic operation" . Chemical Engineering Science 62, no. 21 (2007) : 6002-6014.
http://dx.doi.org/10.1016/j.ces.2007.06.027
---------- MLA ----------
Ayude, M.A., Martínez, O.M., Cassanello, M.C. "Modulation of liquid holdup along a trickle bed reactor with periodic operation" . Chemical Engineering Science, vol. 62, no. 21, 2007, pp. 6002-6014.
http://dx.doi.org/10.1016/j.ces.2007.06.027
---------- VANCOUVER ----------
Ayude, M.A., Martínez, O.M., Cassanello, M.C. Modulation of liquid holdup along a trickle bed reactor with periodic operation. Chem. Eng. Sci. 2007;62(21):6002-6014.
http://dx.doi.org/10.1016/j.ces.2007.06.027