Studium sorpce látek v ustáleném stavu a jejich transportního mechanismu v polymerní membráně při permeaci par

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F06%3A00054950" target="_blank" >RIV/67985858:_____/06:00054950 - 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

Steady State Sorption Measurement and the Transport Mechanism in Polymeric Membrane during Vapor Permeation

Popis výsledku v původním jazyce

The transport of propan-1-ol through a polyethylene membrane during vapor permeation was investigated. Diffusion coefficients, fluxes and sorption isotherms were evaluated from independent experiments for different vapor concentrations. The linear flux dependence on feed vapor concentration and concentration independent diffusion coefficient were found for all experimental temperatures. According to these results, linear sorption isotherms (Fick?s first law) were expected. In the conflict with the expectation nonlinear courses of the equilibrium sorption isotherms for higher vapor concentration (P/P0 > 0.6) were obtained. To explain this discrepancy, a new apparatus to study the sorption in steady state of the vapor permeation process was proposed andconstructed. The data obtained in steady state using this device indicate that the transport of propan-1-ol through polyethylene membrane is well described by the Fick?s first law.

Název v anglickém jazyce

Steady State Sorption Measurement and the Transport Mechanism in Polymeric Membrane during Vapor Permeation

Popis výsledku anglicky

The transport of propan-1-ol through a polyethylene membrane during vapor permeation was investigated. Diffusion coefficients, fluxes and sorption isotherms were evaluated from independent experiments for different vapor concentrations. The linear flux dependence on feed vapor concentration and concentration independent diffusion coefficient were found for all experimental temperatures. According to these results, linear sorption isotherms (Fick?s first law) were expected. In the conflict with the expectation nonlinear courses of the equilibrium sorption isotherms for higher vapor concentration (P/P0 > 0.6) were obtained. To explain this discrepancy, a new apparatus to study the sorption in steady state of the vapor permeation process was proposed andconstructed. The data obtained in steady state using this device indicate that the transport of propan-1-ol through polyethylene membrane is well described by the Fick?s first law.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CI - Průmyslová chemie a chemické inženýrství

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>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 periodika

Journal of Membrane Science

ISSN

0376-7388

e-ISSN

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Svazek periodika

275

Číslo periodika v rámci svazku

1-2

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

9

Strana od-do

166-174

Kód UT WoS článku

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EID výsledku v databázi Scopus

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