About: Effective Diffusivities and Pore-Transport Characteristics of Washcoated Ceramic Monolith for Automotive Catalytic Converter

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Using the chromatographic technique (carrier-gas: N2; tracer-gases: He, Ar) the effective diffusivity in single pellet-string columns (SPSC) packed with porous slab particles was studied. Dispersion due to extra column effects was eliminated via convolution of column responses for two lengths. The measurements were done for cordierite support particles and for cordierite support coated with alumina based washcoat particles. The effective diffusion coefficients for two tracer-carrier pairs were evaluated by fitting column response (chromatographic) peaks in time domain. Mean transport parameters were evaluated for both types of porous particles. Obtained mean transport pore radii are in reasonable agreement with pore size distribution from mercury porosimetry. Using the chromatographic technique (carrier-gas: N2; tracer-gases: He, Ar) the effective diffusivity in single pellet-string columns (SPSC) packed with porous slab particles was studied. Dispersion due to extra column effects was eliminated via convolution of column responses for two lengths. The measurements were done for cordierite support particles and for cordierite support coated with alumina based washcoat particles. The effective diffusion coefficients for two tracer-carrier pairs were evaluated by fitting column response (chromatographic) peaks in time domain. Mean transport parameters were evaluated for both types of porous particles. Obtained mean transport pore radii are in reasonable agreement with pore size distribution from mercury porosimetry. (en) Chromatografická kolona v SPSR uspořádání plněná kousky porézního katalytického monolitu byla užita k určení jeho efektivních difuzních koeficientů. Ve studii byly užity 4 neadsorbijící se plyny. Convolutorní integrál byl použit, aby bylo možno odstranit mimokolonové efekty. Z těchto důvodů byly použity 2 různé délky kolony. Fitování v časové doméně bylom použito k určení transportních parametrů i efektivních difuzních koeficientů. Získáné texturní charakteristiky jsou ve shodě z výsledky z tlakové porozimetrie. (cs)
Title	Effective Diffusivities and Pore-Transport Characteristics of Washcoated Ceramic Monolith for Automotive Catalytic Converter Effective Diffusivities and Pore-Transport Characteristics of Washcoated Ceramic Monolith for Automotive Catalytic Converter (en) Effektivní difuzivity a transportní charakteristiky automobilového katalytického konvertoru (cs)
skos:prefLabel	Effective Diffusivities and Pore-Transport Characteristics of Washcoated Ceramic Monolith for Automotive Catalytic Converter Effective Diffusivities and Pore-Transport Characteristics of Washcoated Ceramic Monolith for Automotive Catalytic Converter (en) Effektivní difuzivity a transportní charakteristiky automobilového katalytického konvertoru (cs)
skos:notation	RIV/67985858:_____/06:00055164!RIV07-AV0-67985858
http://linked.open.../vavai/riv/strany	5934;5943
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA104/05/2616), P(IAA4072404), Z(AV0Z40720504)
http://linked.open...iv/cisloPeriodika	18
http://linked.open...vai/riv/dodaniDat	2007
http://linked.open...aciTvurceVysledku	Schneider, Petr Šolcová, Olga
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav chemických procesů AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	473274
http://linked.open...ai/riv/idVysledku	RIV/67985858:_____/06:00055164
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	effective diffusivity; monolith catalyst; chromatography (en)
http://linked.open.../riv/klicoveSlovo	chromatography effective diffusivity monolith catalyst
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[0D5A2609073A]
http://linked.open...i/riv/nazevZdroje	Chemical Engineering Science
http://linked.open...in/vavai/riv/obor	CF
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Diffusion coefficents and other transport characteristics of specially shaped porous supports and catalysts Catalytic reactors for combustion of exhaust gases of automobiles
http://linked.open...UplatneniVysledku	2006
http://linked.open...v/svazekPeriodika	61
http://linked.open...iv/tvurceVysledku	Schneider, Petr Šolcová, Olga Marek, M. Starý, T.
http://linked.open...n/vavai/riv/zamer	Investigation of multiphase reacting systems for the design of processes important in synthesis and preparation of novel materials, in energy production and in environmental protection
issn	0009-2509
number of pages	10 (xsd:int)

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