Effective 1D Model Reflecting the Impact of Deposited Soot on Coupled Reaction and Transport Inside the Catalytic Filter Wall

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F25%3A43933653" target="_blank" >RIV/60461373:22340/25:43933653 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1021/acsengineeringau.5c00024" target="_blank" >https://doi.org/10.1021/acsengineeringau.5c00024</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acsengineeringau.5c00024" target="_blank" >10.1021/acsengineeringau.5c00024</a>

Result language
angličtina
Original language name
Effective 1D Model Reflecting the Impact of Deposited Soot on Coupled Reaction and Transport Inside the Catalytic Filter Wall
Original language description
This paper proposes an extension of the 1D+1D model for a catalytic monolith filter used in exhaust gas aftertreatment, which allows for the prediction of the effects that soot deposits formed inside the filter wall can have on the catalytic conversion of exhaust gas components. The soot deposits act as an additional barrier between the flowing gas and catalytic sites. The extended model considers three characteristic lengths for diffusion: (i) through the soot deposits, (ii) through the remaining free pores, and (iii) through the catalytic coating. The diffusion resistance of each part is considered based on the corresponding characteristic length and local effective diffusivity. The simulations predict no influence of soot on the reaction onset but an increased slip of unreacted gas above the light-off temperature, particularly at higher flow rates. The predicted trends are consistent with the observations reported in the literature. © 2025 The Authors. Published by American Chemical Society
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20401 - Chemical engineering (plants, products)

Project
<a href="/en/project/GA22-12227S" target="_blank" >GA22-12227S: Computer-aided design of catalytic filters considering the impact of trapped particulate matter</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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