Artículo

La versión final de este artículo es de uso interno de la institución.
Consulte el artículo en la página del editor
Consulte la política de Acceso Abierto del editor

Abstract:

The behavior of an isothermal catalytic particle in a TBR with ON-OFF liquid flow modulation has been modeled considering isothermal conditions. The impact of catalytic properties has been investigated considering uniform and egg shell distributions. Furthermore, the effect of varying inert core porosity for egg shell catalysts has also been addressed. The model represents experimental trends observed for slow and intermediate cycling. In most cases, egg shell catalysts presented a better performance in comparison with uniform catalysts. However, during cycling, performance depends on working conditions and catalytic properties. Therefore, catalyst design and mode of operation are related issues that need to be defined jointly. The relevance of internal processes (reaction, diffusion, and accumulation) and external transport on overall performance has been addressed. Therefore, the model would serve as a basis, coupled with the development at reactor scale, for the integral reactor design. © 2005 American Chemical Society.

Registro:

Documento: Artículo
Título:Periodic operation of trickle bed reactors: An approach to catalyst design through modeling at the particle scale
Autor:Ayude, M.A.; Cassanello, M.C.; Haure, P.M.; Martínez, O.M.
Filiación:INTEMA, CONICET, UNMdP, J.B. Justo 4302, 7600 Mar del Plata, Argentina
PINMATE, Dep. Industrias, FCEyN-UBA Int., Güiraldes 2620, C1428BGA Buenos Aires, Argentina
Dep. Ing. Química, FI-UNLP-CINDECA, Calls 47 No. 257, 1900 La Plata, Argentina
Palabras clave:Catalysts; Industrial engineering; Mathematical models; Porosity; Catalyst design; Egg shell distributions; Liquid flow modulation; Trickle bed reactors; Chemical reactors; catalyst; design; trickle bed reactor
Año:2005
Volumen:44
Número:25
Página de inicio:9594
Página de fin:9600
DOI: http://dx.doi.org/10.1021/ie0502741
Título revista:Industrial and Engineering Chemistry Research
Título revista abreviado:Ind. Eng. Chem. Res.
ISSN:08885885
CODEN:IECRE
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_08885885_v44_n25_p9594_Ayude

Referencias:

  • Khadilkar, M., Al-Dahhan, M.H., Dudukovic, M.P., Parametric study of unsteady-state flow modulation in trickle-bed reactors (1999) Chem. Eng. Sci., 54, pp. 2585-2595
  • Silveston, P.L., Hanika, J., Challenges for the periodic operation of trickle-bed catalytic reactors (2002) Chem. Eng. Sci., 57, pp. 3373-3385
  • Muzen, A., Fraguío, M.S., Cassanello, M.C., Ayude, M.A., Haure, P., Martínez, O.M., Clean oxidation of alcohols in a trickle-bed reactor with liquid flow modulation (2005) Ind. Eng. Chem. Res., , in press
  • Gavriilidis, A., Varma, A., Morbidelli, M., Optimal distribution of catalyst in pellets (1993) Catal. Rev. - Sci. Eng., 35, pp. 399-456
  • Mills, P.L., Dudukovic, M.P., A comparison of current models for isothermal trickle-bed reactors. Application to a model reaction system. Chemical and Catalytic Reactor Modeling (1984) ACS Symp. Ser., 237, pp. 37-59
  • An, W., Zhang, Q., Ma, Y., Chuang, K.T., Pd-based catalysts for catalytic wet oxidation of combined Kraft pulp mill effluents in a trickle bed reactor (2001) Catal. Today, 64, pp. 289-296
  • Gabarain, L., Castellan, A., Cechini, J., Tobolski, A., Haure, P.M., Analysis of rate enhancement in a periodically operated trickle-bed reactor (1997) AIChE J., 43, pp. 166-172
  • Houserová, P., Hanika, J., Experiments with periodically operated liquid feed stream (2002) Proc. of CHISA 2002-15th Int. Congress of Chemical and Process Eng., , Prague, Czech Republic
  • Banchero, M., Manna, L., Sicardi, S., Ferri, A., Experimental investigation of fast-mode liquid modulation in a trickle-bed reactor (2004) Chem. Eng. Sci., 59, pp. 4149-4154
  • Beaudry, E.G., Duduković, M.P., Mills, P.L., Trickle-bed reactors: Liquid diffusional effects in a gas-limited reaction (1987) AIChE J., 33, pp. 1435-1447
  • Harold, M.P., Ng, K.M., Effectiveness enhancement and reactant depletion in a partially wetted catalyst (1987) AIChE J., 33, pp. 1448-1465
  • Lange, R., Gutsche, R., Hanika, J., Forced periodic operation of a trickle-bed reactor (1999) Chem. Eng. Sci., 54, pp. 2569-2573
  • Lange, R., Schubert, M., Dietrich, W., Grunewald, M., Unsteady-state operation of trickle-bed reactors (2004) Chem. Eng. Sci., 59, pp. 5355-5361
  • Stegasov, A.N., Kirillov, V.A., Silveston, P.L., Modeling of catalytic so2 oxidation for continuous and periodic liquid flow through a trickle bed (1994) Chem. Eng. Sci., 49, pp. 3699-3710
  • Boelhouwer, J.G., (2001) Nonsteady Operation of Trickle-bed Reactors: Hydrodynamics, Mass and Heat Transfer, , Ph.D. Thesis, Technische Universiteit Eindhoven, The Netherlands
  • Kouris, Ch., Neophytides, S., Vayenas, C.G., Tsamopoulos, J., Unsteady state operation of catalytic particles with constant and periodically changing degree of external wetting (1998) Chem. Eng. Sci., 53, pp. 3129-3142
  • Ayude, M.A., Cassanello, M.C., Martínez, O.M., Haure, P.M., Phenomenological approach to interpret the effect of liquid flow modulation in trickle-bed reactors at the particle scale (2005) Chem. Eng. Sci., , in press
  • Goto, S., Smith, J.M., Trickle-bed reactor performance: 1. Hold-up and mass transfer effects (1975) AIChE J., 21, pp. 706-713
  • Lange, R., Hanika, J., Stradiotto, D., Hudgins, R.R., Silveston, P.L., Investigations of periodically operated trickle-bed reactors (1994) Chem. Eng. Sci., 49, pp. 5615-5622
  • Skala, D., Hanika, J., Periodic operations of trickle-bed reactor (2002) Proc. of CHISA 2002-15th Int. Congress of Chemical and Process Eng., , Prague, Czech Republic
  • Morbidelli, M., Varma, A., On shape normalization for nonuniformly active catalyst pellets-II (1983) Chem. Eng. Sci., 38, p. 297

Citas:

---------- APA ----------
Ayude, M.A., Cassanello, M.C., Haure, P.M. & Martínez, O.M. (2005) . Periodic operation of trickle bed reactors: An approach to catalyst design through modeling at the particle scale. Industrial and Engineering Chemistry Research, 44(25), 9594-9600.
http://dx.doi.org/10.1021/ie0502741
---------- CHICAGO ----------
Ayude, M.A., Cassanello, M.C., Haure, P.M., Martínez, O.M. "Periodic operation of trickle bed reactors: An approach to catalyst design through modeling at the particle scale" . Industrial and Engineering Chemistry Research 44, no. 25 (2005) : 9594-9600.
http://dx.doi.org/10.1021/ie0502741
---------- MLA ----------
Ayude, M.A., Cassanello, M.C., Haure, P.M., Martínez, O.M. "Periodic operation of trickle bed reactors: An approach to catalyst design through modeling at the particle scale" . Industrial and Engineering Chemistry Research, vol. 44, no. 25, 2005, pp. 9594-9600.
http://dx.doi.org/10.1021/ie0502741
---------- VANCOUVER ----------
Ayude, M.A., Cassanello, M.C., Haure, P.M., Martínez, O.M. Periodic operation of trickle bed reactors: An approach to catalyst design through modeling at the particle scale. Ind. Eng. Chem. Res. 2005;44(25):9594-9600.
http://dx.doi.org/10.1021/ie0502741