Washcoating of catalytic particulate filters studied by time-resolved X-ray tomography

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F21%3A43923093" target="_blank" >RIV/60461373:22340/21:43923093 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S1385894720341747?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S1385894720341747?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.cej.2020.128057" target="_blank" >10.1016/j.cej.2020.128057</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Washcoating of catalytic particulate filters studied by time-resolved X-ray tomography

Popis výsledku v původním jazyce

In this paper we introduce a new application of time-resolved X-ray tomography (XRT) to imaging of the washcoating process in catalytic monolith filters with a honeycomb structure (DPF, GPF). The method is applied to several alumina washcoats with different particle size distributions deposited on a cordierite substrate. The results bring new insights into the drying dynamics of the porous filter wall as well as the on-wall catalyst layer, including the process of layer shrinking and cracking. The XRT results are supplemented by cross-section scanning electron microscopy images and mercury intrusion porosimetry of the final structures. In addition to the statistical analysis of the washcoat distribution, the impact of the washcoat structure on filter pressure loss is determined by experiments.

Název v anglickém jazyce

Washcoating of catalytic particulate filters studied by time-resolved X-ray tomography

Popis výsledku anglicky

In this paper we introduce a new application of time-resolved X-ray tomography (XRT) to imaging of the washcoating process in catalytic monolith filters with a honeycomb structure (DPF, GPF). The method is applied to several alumina washcoats with different particle size distributions deposited on a cordierite substrate. The results bring new insights into the drying dynamics of the porous filter wall as well as the on-wall catalyst layer, including the process of layer shrinking and cracking. The XRT results are supplemented by cross-section scanning electron microscopy images and mercury intrusion porosimetry of the final structures. In addition to the statistical analysis of the washcoat distribution, the impact of the washcoat structure on filter pressure loss is determined by experiments.

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/GA19-22173S" target="_blank" >GA19-22173S: Mikrostruktura katalytických filtrů pro čištění automobilových výfukových plynů</a><br>

Návaznosti

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

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Chemical Engineering Journal

ISSN

1385-8947

e-ISSN

—

Svazek periodika

409

Číslo periodika v rámci svazku

APR 1 2021

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

14

Strana od-do

128057

Kód UT WoS článku

000618082400003

EID výsledku v databázi Scopus

2-s2.0-85098205725