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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 ASEP 0475966 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Comparison 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, SAISource Title Chemical and Biochemical Engineering Quarterly - ISSN 0352-9568
Roč. 31, č. 2 (2017), s. 145-160Number of pages 16 s. Action International Congress of Chemical and Process Engineering CHISA 2016 /22./ Event date 27.08.2016 - 31.08.2016 VEvent location Prague Country CZ - Czech Republic Event type WRD Language eng - English Country HR - Croatia Keywords gas/vapour separation ; low-density polyethylene ; thin-film-composite membrane Subject RIV CI - Industrial Chemistry, Chemical Engineering OECD category Chemical process engineering R&D Projects LD14094 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Open access Institutional support UCHP-M - RVO:67985858 UT WOS 000405761200004 EID SCOPUS 85023605038 DOI https://doi.org/10.15255/CABEQ.2016.1017 Annotation This 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.
Workplace Institute of Chemical Process Fundamentals Contact Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Year of Publishing 2022 Electronic address http://silverstripe.fkit.hr/cabeq/assets/Uploads/03-2-2017.pdf
Number of the records: 1