Measuring the transient diffusion of vapor mixtures through dense membranes

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F10%3A00023376" target="_blank" >RIV/60461373:22340/10:00023376 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Measuring the transient diffusion of vapor mixtures through dense membranes

Original language description

We propose a method of measuring the transient diffusion of vapor mixtures through flat dense membranes. The experimental setup consists of a self-developed differential permeation cell and a real-time analyzer to monitor the permeate-sweep gas mixture.The selectivity and the low sampling period of the real-time analysis are ensured by combining a quadrupole mass spectrometer and a gas chromatograph equipped with an inert capillary column. The proposed method is demonstrated at 298 K on the following binary mixtures of vapors: p-xylene-octane and toluene-octane permeating through low density polyethylene, and propan-1-ol-butan-1-ol vapors permeating through polydimethylsiloxane and through polydimethylsiloxane filled with montmorillonite. Based on extended Fick's laws, we evaluate parameters describing cross-diffusion effects, using the Gauss-Newton method and finite difference modeling. In contrast to the transient diffusion of pure compounds, the simultaneous diffusion of a binary m

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CF - Physical chemistry and theoretical chemistry

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2010

Confidentiality

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

Name of the periodical

Journal of Membrane Science

ISSN

0376-7388

e-ISSN

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Volume of the periodical

2010

Issue of the periodical within the volume

350

Country of publishing house

BE - BELGIUM

Number of pages

9

Pages from-to

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UT code for WoS article

000276154300025

EID of the result in the Scopus database

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