Reaction kinetic parameters for a distributed model of transport and reaction in Pd/Rh/CeZrO three-way catalytic converters
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...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Universidad Nacional de Colombia
2019-07-01
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| Series: | Dyna |
| Subjects: | |
| Online Access: | https://revistas.unal.edu.co/index.php/dyna/article/view/78596 |
| _version_ | 1818394402606809088 |
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| author | David Camilo Rosero Chicaíza Bibian A Hoyos |
| author_facet | David Camilo Rosero Chicaíza Bibian A Hoyos |
| author_sort | David Camilo Rosero Chicaíza |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-12-14T06:00:38Z |
| format | Article |
| id | doaj.art-c7d4001aa1234cc88fec2cfd0c6757ac |
| institution | Directory Open Access Journal |
| issn | 0012-7353 2346-2183 |
| language | English |
| last_indexed | 2024-12-14T06:00:38Z |
| publishDate | 2019-07-01 |
| publisher | Universidad Nacional de Colombia |
| record_format | Article |
| series | Dyna |
| spelling | doaj.art-c7d4001aa1234cc88fec2cfd0c6757ac2022-12-21T23:14:27ZengUniversidad Nacional de ColombiaDyna0012-73532346-21832019-07-018621021622310.15446/dyna.v86n210.7859651696Reaction kinetic parameters for a distributed model of transport and reaction in Pd/Rh/CeZrO three-way catalytic convertersDavid Camilo Rosero Chicaíza0Bibian A Hoyos1Universidad Nacional de Colombia - Sede MedellínUniversidad Nacional de Colombia - Sede MedellínThis 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.https://revistas.unal.edu.co/index.php/dyna/article/view/78596three-way catalystmathematical modeldiffusionkinetic parameters |
| spellingShingle | David Camilo Rosero Chicaíza Bibian A Hoyos Reaction kinetic parameters for a distributed model of transport and reaction in Pd/Rh/CeZrO three-way catalytic converters Dyna three-way catalyst mathematical model diffusion kinetic parameters |
| title | Reaction kinetic parameters for a distributed model of transport and reaction in Pd/Rh/CeZrO three-way catalytic converters |
| title_full | Reaction kinetic parameters for a distributed model of transport and reaction in Pd/Rh/CeZrO three-way catalytic converters |
| title_fullStr | Reaction kinetic parameters for a distributed model of transport and reaction in Pd/Rh/CeZrO three-way catalytic converters |
| title_full_unstemmed | Reaction kinetic parameters for a distributed model of transport and reaction in Pd/Rh/CeZrO three-way catalytic converters |
| title_short | Reaction kinetic parameters for a distributed model of transport and reaction in Pd/Rh/CeZrO three-way catalytic converters |
| title_sort | reaction kinetic parameters for a distributed model of transport and reaction in pd rh cezro three way catalytic converters |
| topic | three-way catalyst mathematical model diffusion kinetic parameters |
| url | https://revistas.unal.edu.co/index.php/dyna/article/view/78596 |
| work_keys_str_mv | AT davidcamiloroserochicaiza reactionkineticparametersforadistributedmodeloftransportandreactioninpdrhcezrothreewaycatalyticconverters AT bibianahoyos reactionkineticparametersforadistributedmodeloftransportandreactioninpdrhcezrothreewaycatalyticconverters |