Multi-scale modelling of reaction and transport in porous catalysts

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F10%3A00023272" target="_blank" >RIV/60461373:22340/10:00023272 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Multi-scale modelling of reaction and transport in porous catalysts

Original language description

Mathematical models of reaction and transport in porous catalyst on three different scales (nano, micro, and macro) are presented. Methodology is demonstrated on CO oxidation in porous Pt/gamma-Al2O3 catalyst, washcoated on monolith. Morphological characteristics are obtained from TEM and SEM images of the washcoat cross-section. Methods for passing the model results from the bottom to the top level are discussed. On the nano level (I), spatially 3D model of a single meso-porous gamma-Al2O3 particle (approximate to 0.1-1 mu m) is used. Digital reconstruction of porous medium is here based on virtual agglomeration of Al2O3 nanoparticles and consequent deposition of individual Pt crystallites. The model considers the effects of catalytic sites sizes anddiffusion in small meso-pores (d approximate to 10 nm). On the micro level (II), spatially 3D model of porous catalytic washcoat (thickness approximate to 30 mu m) is used. Here the reconstruction is based on virtual packing of Pt/gamma-A

Czech name

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Czech description

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Type

J_x - 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

<a href="/en/project/GP104%2F06%2FP301" target="_blank" >GP104/06/P301: Multi-scale modelling of reactions and transport in structured porous catalysts</a><br>

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)<br>S - Specificky vyzkum na vysokych skolach

Publication year

2010

Confidentiality

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

Name of the periodical

Chemical Engineering Science

ISSN

0009-2509

e-ISSN

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Volume of the periodical

65

Issue of the periodical within the volume

1

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

8

Pages from-to

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UT code for WoS article

000276206700062

EID of the result in the Scopus database

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