Prediction of diffusivity and conversion of n-decane and CO in coated Pt/gama-Al2O3 catalyst depending on porous layer morphology

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23640%2F14%3A43921775" target="_blank" >RIV/49777513:23640/14:43921775 - isvavai.cz</a>
Alternative codes found
RIV/60461373:22340/14:43901542
Result on the web
<a href="http://dx.doi.org/10.1016/j.apcatb.2013.12.018" target="_blank" >http://dx.doi.org/10.1016/j.apcatb.2013.12.018</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.apcatb.2013.12.018" target="_blank" >10.1016/j.apcatb.2013.12.018</a>

Result language
angličtina
Original language name
Prediction of diffusivity and conversion of n-decane and CO in coated Pt/gama-Al2O3 catalyst depending on porous layer morphology
Original language description
The conversion in monolith reactors for automotive exhaust gas aftertreatment can be limited by diffusion in the catalytic layer. This is particularly important for monolith reactors with multiple coated layers. In this paper, we present detailed modeling methodology for prediction of effective diffusivity based on the actual structure of a porous coating (particle and pore size distributions). We demonstrate the approach on diffusion and oxidation of n-decane and CO in Pt/gama-Al2O3 layers typically used in diesel oxidation catalysts. To validate the model predictions experimentally, several layers were coated with uniform thickness on flat metal foils, and their macroporous structure was controlled by alumina particle size distribution, pore templates and compaction techniques. A multi-scale modelling approach was then applied to predict effective diffusivity and impact of the internal diffusion limitations on the achieved conversions. Diffusion of CO and n-decane was simulated on a
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CI - Industrial chemistry and chemical engineering
OECD FORD branch
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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