MEASUREMENT OF EFFECTIVE DIFFUSIVITY IN CATALYST-COATED MONOLITH BY CHROMATOGRAPHIC METHOD
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F05%3A00014573" target="_blank" >RIV/60461373:22340/05:00014573 - isvavai.cz</a>
Nalezeny alternativní kódy
RIV/60461373:22340/05:00015447
Výsledek na webu
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DOI - Digital Object Identifier
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Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
MEASUREMENT OF EFFECTIVE DIFFUSIVITY IN CATALYST-COATED MONOLITH BY CHROMATOGRAPHIC METHOD
Popis výsledku v původním jazyce
The effective diffusivity in the pores of catalytic monolith was studied in single pellet-string columns (SPSC) by chromatographic technique (carrier-gas: N2; tracer-gases: He, Ar). The column was packed with small monolith particles (slab geometry). Dispersion due to extra column effects was eliminated via convolution of responses for two column lengths. The measurements were done for both cordierite support and 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 poresize distribution from mercury porosimetry.
Název v anglickém jazyce
MEASUREMENT OF EFFECTIVE DIFFUSIVITY IN CATALYST-COATED MONOLITH BY CHROMATOGRAPHIC METHOD
Popis výsledku anglicky
The effective diffusivity in the pores of catalytic monolith was studied in single pellet-string columns (SPSC) by chromatographic technique (carrier-gas: N2; tracer-gases: He, Ar). The column was packed with small monolith particles (slab geometry). Dispersion due to extra column effects was eliminated via convolution of responses for two column lengths. The measurements were done for both cordierite support and 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 poresize distribution from mercury porosimetry.
Klasifikace
Druh
O - Ostatní výsledky
CEP obor
CI - Průmyslová chemie a chemické inženýrství
OECD FORD obor
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Návaznosti výsledku
Projekt
<a href="/cs/project/GA104%2F05%2F2616" target="_blank" >GA104/05/2616: Katalytické reaktory pro dospalování výfukových plynů automobilů</a><br>
Návaznosti
Z - Vyzkumny zamer (s odkazem do CEZ)
Ostatní
Rok uplatnění
2005
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů