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

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  • The effective diffusivity in the pores of catalytic monolith was studied in single pellet-string columns by chromatographic technique. The column was packed with small monolith particles. Dispersion due to extra column effects was eliminated via convolution of responses for two column lenghts. The measurements were done for both cordierite support with alumina based washcoat. 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.
  • The effective diffusivity in the pores of catalytic monolith was studied in single pellet-string columns by chromatographic technique. The column was packed with small monolith particles. Dispersion due to extra column effects was eliminated via convolution of responses for two column lenghts. The measurements were done for both cordierite support with alumina based washcoat. 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)
  • Efektivní difuzivity v porech katalytických monolitů byly studovány chromatografickou technikou v kolonách s uspořádanými náplněmi. Disperze vlivem mimokolonových efektů byla zahrnuta použitím konvoluce odezvových signálů z kolon dvou délek. Měření byla provedena jak pro kordieritový nosič, tak pro nosič s nanesenou vrstvou aluminy. Efektivní difuzivity pro dva páry nosný plyn – stopovací plyn byly získány fitováním odezev kolon v časové doméně. Pro oba typy porézních částic bybly vyhodnoceny transportní parametry. Získané střední poloměry porů jsou v dobré shodě s distribucemi porů z fyzikální adsorpce dusíkua a vysokotlaké truťové porozimetrie. (cs)
Title
  • Effective Diffusivities and Pore-Transport Characteristics of Washcoated Ceramic Monolith for Automotive Catalytic Converter
  • Efektivní difuzivity a transportní charakteristiky monolitických automobilových konvertorů s nanesenou vrstvou katalyzátoru (cs)
  • Effective Diffusivities and Pore-Transport Characteristics of Washcoated Ceramic Monolith for Automotive Catalytic Converter (en)
skos:prefLabel
  • Effective Diffusivities and Pore-Transport Characteristics of Washcoated Ceramic Monolith for Automotive Catalytic Converter
  • Efektivní difuzivity a transportní charakteristiky monolitických automobilových konvertorů s nanesenou vrstvou katalyzátoru (cs)
  • Effective Diffusivities and Pore-Transport Characteristics of Washcoated Ceramic Monolith for Automotive Catalytic Converter (en)
skos:notation
  • RIV/67985858:_____/05:00028633!RIV06-AV0-67985858
http://linked.open.../vavai/riv/strany
  • 215
http://linked.open...avai/riv/aktivita
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  • P(GA104/05/2616), P(GD104/03/H141), P(IAA4072404), Z(AV0Z40720504)
http://linked.open...vai/riv/dodaniDat
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  • 519523
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  • RIV/67985858:_____/05:00028633
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  • effective diffusivity; monolith catalyst; transport parameters (en)
http://linked.open.../riv/klicoveSlovo
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  • [7863FBB3664E]
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  • Tatranské Matliare
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  • Bratislava
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  • Proceedings
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  • Schneider, Petr
  • Šolcová, Olga
  • Marek, M.
  • Starý, T.
http://linked.open...vavai/riv/typAkce
http://linked.open.../riv/zahajeniAkce
http://linked.open...n/vavai/riv/zamer
number of pages
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  • Slovak Society of Chemical Engineering
https://schema.org/isbn
  • 80-227-2224-3
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