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

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, SAI}
Source Title	Chemical and Biochemical Engineering Quarterly - ISSN 0352-9568 Roč. 31, č. 2 (2017), s. 145-160
Number 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	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