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Comparison of Hexane Vapour Permeation in Two Different Polymeric Membranes via an Innovative In-Line FID Detection Method.

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    SYSNO ASEP0475966
    Document TypeJ - Journal Article
    R&D Document TypeZáznam nebyl označen do RIV
    Subsidiary JČlánek ve WOS
    TitleComparison of Hexane Vapour Permeation in Two Different Polymeric Membranes via an Innovative In-Line FID Detection Method.
    Author(s) Petrusová, Zuzana (UCHP-M) RID, ORCID, SAI
    Morávková, Lenka (UCHP-M) RID, SAI
    Vejražka, Jiří (UCHP-M) RID, ORCID, SAI
    Vajglová, Zuzana (UCHP-M) RID, ORCID, SAI
    Jansen, J.C. (IT)
    Izák, Pavel (UCHP-M) RID, ORCID, SAI
    Source TitleChemical and Biochemical Engineering Quarterly - ISSN 0352-9568
    Roč. 31, č. 2 (2017), s. 145-160
    Number of pages16 s.
    ActionInternational Congress of Chemical and Process Engineering CHISA 2016 /22./
    Event date27.08.2016 - 31.08.2016
    VEvent locationPrague
    CountryCZ - Czech Republic
    Event typeWRD
    Languageeng - English
    CountryHR - Croatia
    Keywordsgas/vapour separation ; low-density polyethylene ; thin-film-composite membrane
    Subject RIVCI - Industrial Chemistry, Chemical Engineering
    R&D ProjectsLD14094 GA MŠk - Ministry of Education, Youth and Sports (MEYS)
    Institutional supportUCHP-M - RVO:67985858
    UT WOS000405761200004
    EID SCOPUS85023605038
    DOI10.15255/CABEQ.2016.1017
    AnnotationThis manuscript presents a novel method for the analysis of vapour permeation through polymeric membranes based on in-line analysis of the permeate with an FID
    detector. The hexane vapour permeation was studied for two commercially available membranes, namely low-density polyethylene (LDPE) and thin-film-composite polyamide
    (PA) membrane. The hexane permeation was studied at temperatures of 25–45 °C, hexane vapour activity in the range of 0.2–0.8 and trans-membrane pressures of 5–50
    kPa. Two fundamentally different membranes were chosen to demonstrate the potential and sensitivity of the permeation apparatus. Upon increasing the temperature from 25 to 45 °C, the flux in LDPE was found to increase almost fourfold over the whole activity range. The nonlinear increase of the flux with activity indicates plasticization of the polymer by hexane. Contrarily, the flux in the PA membrane increases almost linearly with activity, with only a minor upward curvature. Since the PA is far away from any phase
    transition, it is less temperature-dependent than LDPE. The activation energy for permeation demonstrates that the temperature dependence in the LDPE membrane is dominated by changes in diffusion, whereas it is dominated by changes in solubility in the PA membrane.
    WorkplaceInstitute of Chemical Process Fundamentals
    ContactEva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227
    Year of Publishing2018
Number of the records: 1