About: Modelling of TWC monolith converters with microkinetics and diffusion in the washcoat

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Jsou popsány dva modely katalytického monolitického reaktoru s difusí v katalytické vrstvě, za použití nestacionární kinetiky oxidace CO a uhlovodíku, redukce NOX a ukládání kyslíku na povrchu (celkem 23 reakčních kroků). První model popisuje dynamické chování krátkého monolitu (míchaný reaktor, r. se zpětným tokem) a druhý je prostorově dvourozměrný model monolitu s pístovým tokem. Je ukázána kvalitativní shoda mezi nelineární dynamikou oxidace CO, zahrnující hysteresi, oscilace a zdvojení periody, pozorovanou v modelu, a staršími experimenty. Dále je simulován vliv transportních parametrů v katalytické vrstvě na zapálení reakce a výstupní konverse. (cs) Two models of catalytic monolith reactor with diffusion in the washcoat are described, employing the nonstationary kinetics of CO and hydrocarbon oxidation, NOX reduction, and oxygen storage with 23 reaction steps. The first model describes the dynamic behavior in a short monolith (recirculation reactor or CSTR), and the second one is a spatially two-dimensional nonstationary model of the monolith with plug flow. The models are used to demonstrate the qualitative agreement between the observed nonlinear dynamics of CO oxidation, including hysteresis and periodic and period-doubled oscillations, and earlier experiments. The effects of transport parameters within the washcoat on the monolith lightoff and on the outlet conversions are simulated. Two models of catalytic monolith reactor with diffusion in the washcoat are described, employing the nonstationary kinetics of CO and hydrocarbon oxidation, NOX reduction, and oxygen storage with 23 reaction steps. The first model describes the dynamic behavior in a short monolith (recirculation reactor or CSTR), and the second one is a spatially two-dimensional nonstationary model of the monolith with plug flow. The models are used to demonstrate the qualitative agreement between the observed nonlinear dynamics of CO oxidation, including hysteresis and periodic and period-doubled oscillations, and earlier experiments. The effects of transport parameters within the washcoat on the monolith lightoff and on the outlet conversions are simulated. (en)
Title	Modelování trojcestného katalysátoru s mikrokinetikou a vnitřní difusí v katalytické vrstvě (cs) Modelling of TWC monolith converters with microkinetics and diffusion in the washcoat Modelling of TWC monolith converters with microkinetics and diffusion in the washcoat (en)
skos:prefLabel	Modelování trojcestného katalysátoru s mikrokinetikou a vnitřní difusí v katalytické vrstvě (cs) Modelling of TWC monolith converters with microkinetics and diffusion in the washcoat Modelling of TWC monolith converters with microkinetics and diffusion in the washcoat (en)
skos:notation	RIV/60461373:22340/04:00011102!RIV/2005/MSM/223405/N
http://linked.open.../vavai/riv/strany	4503-4510
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(MSM 223400007)
http://linked.open...iv/cisloPeriodika	16
http://linked.open...vai/riv/dodaniDat	2005
http://linked.open...aciTvurceVysledku	Kubíček, Milan Marek, Miloš Kočí, Petr
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	Vysoká škola chemicko-technologická v Praze / Fakulta chemicko-inženýrská
http://linked.open...dnocenehoVysledku	574062
http://linked.open...ai/riv/idVysledku	RIV/60461373:22340/04:00011102
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	internal diffusion;microkinetics;three-way catalyst;monolith;modelling (en)
http://linked.open.../riv/klicoveSlovo	modelling monolith microkinetics three-way catalyst internal diffusion
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[1F776B3BB148]
http://linked.open...i/riv/nazevZdroje	Ind.Eng.Chem., Res.
http://linked.open...in/vavai/riv/obor	CI
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...UplatneniVysledku	2004
http://linked.open...v/svazekPeriodika	43
http://linked.open...iv/tvurceVysledku	Kočí, Petr Kubíček, Milan Marek, Miloš
http://linked.open...n/vavai/riv/zamer	http://linked.opendata.cz/resource/domain/vavai/zamer/MSM%20223400007
issn	0888-5885
number of pages	8 (xsd:int)
http://localhost/t...ganizacniJednotka	22340

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