Publicado

2019-07-01

Reaction kinetic parameters for a distributed model of transport and reaction in Pd/Rh/CeZrO three-way catalytic converters

Parámetros cinéticos de reacción para un modelo distribuido de trasporte y reacción en catalizadores de tres vías de Pd/Rh/CeZrO

DOI:

https://doi.org/10.15446/dyna.v86n210.78596

Palabras clave:

three-way catalyst, mathematical model, diffusion, kinetic parameters (en)
catalizador de tres vías, modelo matemático, difusión, parámetros cinéticos (es)

Autores/as

This paper presents a two-dimensional distributed model for the transport and reaction of combustion gases in channels of three-way catalytic converters, considering a detailed reaction kinetics with 16 chemical reactions in palladium and rhodium catalysts, and taking into account diffusive effects within the coating, to obtain a new set of reaction kinetic parameters that do not depend on the thickness of the coating. The model was solved using a finite volume method with a first order upwind scheme and simulations were conducted using computational fluid dynamics. The model with the new distributed reaction kinetic parameters, produced an excellent agreement with the experimental data of concentration at the end of the channels. Also, the model reproduced the most important concentration changes for the gas components in the specified temperature range and allowed simulations with excess oxygen and different thicknesses.

Este artículo presenta un modelo distribuido bidimensional para el transporte y reacción de gases de combustión en canales de convertidores catalíticos de tres vías, considerando una cinética de reacción detallada con 16 reacciones químicas en catalizadores de paladio y rodio, teniendo en cuenta los efectos difusivos dentro del recubrimiento, para obtener un nuevo conjunto de parámetros cinéticos de reacción no dependientes del grosor del recubrimiento. El modelo se resolvió utilizando un método de volumenes finitos con un esquema de primer orden upwind y las simulaciones se realizaron utilizando dinámica de fluidos computacional. El modelo con los nuevos parámetros cinéticos de reacción distribuidos, produjo un excelente ajuste con los datos experimentales de concentración al final de los canales. Además, el modelo reproduce los cambios de concentración más importantes para los componentes del gas en el rango de temperatura especificado y permitía simulaciones con exceso de oxígeno y diferentes espesores.

Referencias

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Cómo citar

IEEE

[1]
D. C. Rosero Chicaíza y B. A. Hoyos, «Reaction kinetic parameters for a distributed model of transport and reaction in Pd/Rh/CeZrO three-way catalytic converters», DYNA, vol. 86, n.º 210, pp. 216–223, jul. 2019.

ACM

[1]
Rosero Chicaíza, D.C. y Hoyos, B.A. 2019. Reaction kinetic parameters for a distributed model of transport and reaction in Pd/Rh/CeZrO three-way catalytic converters. DYNA. 86, 210 (jul. 2019), 216–223. DOI:https://doi.org/10.15446/dyna.v86n210.78596.

ACS

(1)
Rosero Chicaíza, D. C.; Hoyos, B. A. Reaction kinetic parameters for a distributed model of transport and reaction in Pd/Rh/CeZrO three-way catalytic converters. DYNA 2019, 86, 216-223.

APA

Rosero Chicaíza, D. C. & Hoyos, B. A. (2019). Reaction kinetic parameters for a distributed model of transport and reaction in Pd/Rh/CeZrO three-way catalytic converters. DYNA, 86(210), 216–223. https://doi.org/10.15446/dyna.v86n210.78596

ABNT

ROSERO CHICAÍZA, D. C.; HOYOS, B. A. Reaction kinetic parameters for a distributed model of transport and reaction in Pd/Rh/CeZrO three-way catalytic converters. DYNA, [S. l.], v. 86, n. 210, p. 216–223, 2019. DOI: 10.15446/dyna.v86n210.78596. Disponível em: https://revistas.unal.edu.co/index.php/dyna/article/view/78596. Acesso em: 7 mar. 2026.

Chicago

Rosero Chicaíza, David Camilo, y Bibian A Hoyos. 2019. «Reaction kinetic parameters for a distributed model of transport and reaction in Pd/Rh/CeZrO three-way catalytic converters». DYNA 86 (210):216-23. https://doi.org/10.15446/dyna.v86n210.78596.

Harvard

Rosero Chicaíza, D. C. y Hoyos, B. A. (2019) «Reaction kinetic parameters for a distributed model of transport and reaction in Pd/Rh/CeZrO three-way catalytic converters», DYNA, 86(210), pp. 216–223. doi: 10.15446/dyna.v86n210.78596.

MLA

Rosero Chicaíza, D. C., y B. A. Hoyos. «Reaction kinetic parameters for a distributed model of transport and reaction in Pd/Rh/CeZrO three-way catalytic converters». DYNA, vol. 86, n.º 210, julio de 2019, pp. 216-23, doi:10.15446/dyna.v86n210.78596.

Turabian

Rosero Chicaíza, David Camilo, y Bibian A Hoyos. «Reaction kinetic parameters for a distributed model of transport and reaction in Pd/Rh/CeZrO three-way catalytic converters». DYNA 86, no. 210 (julio 1, 2019): 216–223. Accedido marzo 7, 2026. https://revistas.unal.edu.co/index.php/dyna/article/view/78596.

Vancouver

1.
Rosero Chicaíza DC, Hoyos BA. Reaction kinetic parameters for a distributed model of transport and reaction in Pd/Rh/CeZrO three-way catalytic converters. DYNA [Internet]. 1 de julio de 2019 [citado 7 de marzo de 2026];86(210):216-23. Disponible en: https://revistas.unal.edu.co/index.php/dyna/article/view/78596

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