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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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

Název v anglickém jazyce

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

Popis výsledku anglicky

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

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20401 - Chemical engineering (plants, products)

Projekt

<a href="/cs/project/GA22-12227S" target="_blank" >GA22-12227S: Počítačový návrh katalytických filtrů zohledňující vliv zachycených částic</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

ACS Engineering Au

ISSN

2694-2488

e-ISSN

2694-2488

Svazek periodika

5

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

416-424

Kód UT WoS článku

001526322500001

EID výsledku v databázi Scopus

2-s2.0-105014640329