Stanovení integrálního difuzního koeficientu pomocí sorpčního modelu s dynamickou korekcí

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F06%3A00016703" target="_blank" >RIV/60461373:22340/06:00016703 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Determination of integral diffusion coefficient by sorption model with dynamic correction

Popis výsledku v původním jazyce

In this work the novel improvement of method of calculation of diffusion coefficient from experimental sorption data obtained by measurements of sorption kinetics of vapors in flat non-porous polymer membranes is reported. Method was developed for systems with very fast sorption kinetics of vapors in polymer membranes: hexane - myristate cellulose, methanol - acetovalerate cellulose, ethanol - acetovalerate cellulose at 298 K and ethanol - polylactate at 308 K. Experiments were carried out by a sorptionapparatus with Mc Bain's spiral balances and the elongation of balances, due to sorption of vapors in polymer matrix, was monitored by automatic camera system at selected temperature and at selected vapors pressure. Presented method resulted from commonly used equations for description of sorption process derived for solution of the 2nd Fick Law under appropriate initial and boundary conditions. Application of this method demands the simultaneous detection of mass of sorbed vapors and p

Název v anglickém jazyce

Determination of integral diffusion coefficient by sorption model with dynamic correction

Popis výsledku anglicky

In this work the novel improvement of method of calculation of diffusion coefficient from experimental sorption data obtained by measurements of sorption kinetics of vapors in flat non-porous polymer membranes is reported. Method was developed for systems with very fast sorption kinetics of vapors in polymer membranes: hexane - myristate cellulose, methanol - acetovalerate cellulose, ethanol - acetovalerate cellulose at 298 K and ethanol - polylactate at 308 K. Experiments were carried out by a sorptionapparatus with Mc Bain's spiral balances and the elongation of balances, due to sorption of vapors in polymer matrix, was monitored by automatic camera system at selected temperature and at selected vapors pressure. Presented method resulted from commonly used equations for description of sorption process derived for solution of the 2nd Fick Law under appropriate initial and boundary conditions. Application of this method demands the simultaneous detection of mass of sorbed vapors and p

Druh

D - Stať ve sborníku

CEP obor

CF - Fyzikální chemie a teoretická chemie

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2006

Kód důvěrnosti údajů

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

Název statě ve sborníku

Sborník 17th International Congress of Chemical and Process Engineering

ISBN

80-86059-45-6

ISSN

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e-ISSN

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Počet stran výsledku

12

Strana od-do

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Název nakladatele

Czech Society of Chemical Engineering

Místo vydání

Praha

Místo konání akce

Praha

Datum konání akce

27. 8. 2006

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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