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Abstract:

The response of an isothermal TBR to a liquid flow modulation ON-OFF strategy is examined through a model aimed at the reactor scale. The reaction is gas-limited and first order with respect to both reactants. Liquid hydrodynamic behavior is considered by means of two different approaches: the Liquid Draining Approach, based on experimental results and the ideal, Square Wave Approach. Model allows the evaluation of, among other variables, the liquid holdup, the liquid velocity and the liquid reactant conversion time variations at different axial positions within the reactor. An enhancement factor due to periodic operation is defined by computing a temporal average of the liquid reactant conversion during an invariant cycling state, referred to its corresponding steady-state conversion. For all the conditions investigated, attainable enhancements are lower when the actual draining model is assumed. © 2009 Elsevier B.V. All rights reserved.

Registro:

Documento: Artículo
Título:Towards a comprehensive model for liquid flow modulation in trickle bed reactors
Autor:Ayude, M.A.; Haure, P.M.; Martínez, O.M.; Cassanello, M.C.
Filiación:INTEMA, CONICET, UNMdP., J.B. Justo 4302, 7600 Mar del Plata, Argentina
Dep. Ing. Química, FI-UNLP-CINDECA, Calle 47, No 257, 1900 La Plata, Argentina
PINMATE, Dep. Industrias, FCEyN-UBA Int., Güiraldes 2620, C1428BGA Buenos Aires, Argentina
Palabras clave:Hydrodynamics; Liquid flow modulation; Modeling at the reactor scale; Trickle bed reactors; Axial positions; Comprehensive model; Enhancement factor; First order; Hydrodynamic behavior; Liquid draining; Liquid flow modulation; Liquid hold ups; Liquid reactant; Liquid velocities; Modeling at the reactor scale; Periodic operation; Square waves; Steady-state conversions; Trickle bed reactor; Chemical reactors; Fluid dynamics; Hydrodynamics; Modulation; Liquids
Año:2009
Volumen:154
Número:1-3
Página de inicio:162
Página de fin:167
DOI: http://dx.doi.org/10.1016/j.cej.2009.03.042
Título revista:Chemical Engineering Journal
Título revista abreviado:Chem. Eng. J.
ISSN:13858947
CODEN:CMEJA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_13858947_v154_n1-3_p162_Ayude

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Citas:

---------- APA ----------
Ayude, M.A., Haure, P.M., Martínez, O.M. & Cassanello, M.C. (2009) . Towards a comprehensive model for liquid flow modulation in trickle bed reactors. Chemical Engineering Journal, 154(1-3), 162-167.
http://dx.doi.org/10.1016/j.cej.2009.03.042
---------- CHICAGO ----------
Ayude, M.A., Haure, P.M., Martínez, O.M., Cassanello, M.C. "Towards a comprehensive model for liquid flow modulation in trickle bed reactors" . Chemical Engineering Journal 154, no. 1-3 (2009) : 162-167.
http://dx.doi.org/10.1016/j.cej.2009.03.042
---------- MLA ----------
Ayude, M.A., Haure, P.M., Martínez, O.M., Cassanello, M.C. "Towards a comprehensive model for liquid flow modulation in trickle bed reactors" . Chemical Engineering Journal, vol. 154, no. 1-3, 2009, pp. 162-167.
http://dx.doi.org/10.1016/j.cej.2009.03.042
---------- VANCOUVER ----------
Ayude, M.A., Haure, P.M., Martínez, O.M., Cassanello, M.C. Towards a comprehensive model for liquid flow modulation in trickle bed reactors. Chem. Eng. J. 2009;154(1-3):162-167.
http://dx.doi.org/10.1016/j.cej.2009.03.042