Measurements and multi-scale modelling of n-decane diffusion in coated catalytic layers
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F13%3A43895627" target="_blank" >RIV/60461373:22340/13:43895627 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Measurements and multi-scale modelling of n-decane diffusion in coated catalytic layers
Original language description
In the case of automotive catalytic converters, the effect of the porous waschcoat structure on effective diffusivity has been already studied with detailed porescale simulation of CO diffusion and oxidation [1]. However, larger molecules are commonly present in the exhaust gas. To properly assess their possible diffusion limitation, n-decane was chosen and tested on catalysts of the Pt/?-Al2O3 type. The major and favourable transport mechanism is volume diffusion (in macropores), therefore only macroporous structure was varied. Transport properties were experimentally studied by performing light-off experiments in a lab-scale reactor. A multi-scale methodology and models for CO diffusion and oxidation were modified and applied on the n-decane oxidation. In a pore-scale, small section of the porous catalyst was reconstructed using discrete element method. Then detailed transport and reaction was modelled in the reconstructed structure treating the diffusion in macropores as volume diff
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
CI - Industrial chemistry and chemical engineering
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GAP106%2F10%2F1568" target="_blank" >GAP106/10/1568: Optimization of transport and catalytic properties of porous materials on micro- and nano-scale using 3D digital reconstruction methods</a><br>
Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Proceedings of the 40th International Conference of Slovak Society of Chemical Engineering
ISBN
978-80-89475-09-4
ISSN
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e-ISSN
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Number of pages
10
Pages from-to
1130-1139
Publisher name
Slovak Society of Chemical Engineering
Place of publication
Bratislava
Event location
Tatranské Matliare
Event date
May 27, 2013
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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