Regeneration of Thin-Film Composite Membrane used for Permeation of Hexanevapors.

Petrusová, Zuzana; Morávková, Lenka; Stanovský, Petr; Machanová, Karolina; Koštejn, Martin; Jandová, Věra; Izák, Pavel

doi:https://dx.doi.org/10.1016/j.seppur.2019.04.087

Number of the records: 1

Regeneration of Thin-Film Composite Membrane used for Permeation of Hexanevapors.

1.

SYSNO ASEP	0504454
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Regeneration of Thin-Film Composite Membrane used for Permeation of Hexanevapors.
Author(s)	Petrusová, Zuzana (UCHP-M)_{RID, ORCID, SAI} Morávková, Lenka (UCHP-M)_{RID, SAI} Stanovský, Petr (UCHP-M)_{RID, ORCID, SAI} Machanová, Karolina (UCHP-M)_{RID, SAI} Koštejn, Martin (UCHP-M)_{RID, SAI, ORCID} Jandová, Věra (UCHP-M)_{RID, ORCID, SAI} Izák, Pavel (UCHP-M)_{RID, ORCID, SAI}
Source Title	Separation and Purification Technology. - : Elsevier - ISSN 1383-5866 Roč. 224, OCT 1 (2019), s. 62-69
Number of pages	8 s.
Language	eng - English
Country	GB - United Kingdom
Keywords	membrane aging ; membrane regeneration ; membrane swelling
Subject RIV	CI - Industrial Chemistry, Chemical Engineering
OECD category	Chemical process engineering
R&D Projects	GJ17-03367Y GA ČR - Czech Science Foundation (CSF)
Method of publishing	Limited access
Institutional support	UCHP-M - RVO:67985858
UT WOS	000472686400007
EID SCOPUS	85065243074
DOI	10.1016/j.seppur.2019.04.087
Annotation	Thin-film polyamide composite membrane (TFC) is a good representative model of highly permeable membrane. SEM analysis showed that TFC membrane structure is swelled by hexane vapors. Contrary, its porous structure collapsed when the used membrane is stored at dry conditions. The aging of membrane causes significant decrease of both hexane vapors and nitrogen permeances while the selectivity increases tenfold. The study is based on time influence and on wetting by various solvents. Methanol treatment opens and swells the pores of aged membrane. Furthermore, the transport and separation properties were studied after gradual wetting by mutually miscible solvents with decreasing polarity (methanol, isopropanol and hexane) that are commonly used for membrane drying. Surprisingly, this solvent exchange drying procedure leads to a regeneration of the TFC membrane. The regenerated membrane shows the same transport and separation properties as the pristine TFC membrane.
Workplace	Institute of Chemical Process Fundamentals
Contact	Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227
Year of Publishing	2020
Electronic address	http://hdl.handle.net/11104/0297113

Number of the records: 1