Počet záznamů: 1
Gas separation performance of carbon dioxide-selective poly(vinyl alcohol)-ionic liquid blend membranes: The effect of temperature, feed pressure and humidity.
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SYSNO ASEP 0552480 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Gas separation performance of carbon dioxide-selective poly(vinyl alcohol)-ionic liquid blend membranes: The effect of temperature, feed pressure and humidity. Tvůrce(i) Klepić, M. (CZ)
Jansen, J.C. (IT)
Fuoco, A. (IT)
Esposito, E. (IT)
Izák, Pavel (UCHP-M) RID, ORCID, SAI
Petrusová, Zuzana (UCHP-M) RID, ORCID, SAI
Vankelecom, Ivo F.J. (BE)
Randová, A. (CZ)
Fíla, V. (CZ)
Lanč, M. (CZ)
Friess, Karel (UCHP-M)Číslo článku 118812 Zdroj.dok. Separation and Purification Technology. - : Elsevier - ISSN 1383-5866
Roč. 270, SEP 1 (2021)Poč.str. 9 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova blend membrane ; transport properties ; ionic liquid ; poly (vinyl alcohol) Vědní obor RIV CI - Průmyslová chemie a chemické inženýrství Obor OECD Chemical process engineering CEP EF16_026/0008413 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Způsob publikování Open access s časovým embargem (02.09.2023) Institucionální podpora UCHP-M - RVO:67985858 UT WOS 000652642100006 EID SCOPUS 85106297238 DOI 10.1016/j.seppur.2021.118812 Anotace Membrane separation technology is rapidly emerging as an alternative to traditional gas separation processes, and increasingly challenging separations require a constant search for new and better-performing materials. This paper reports the gas separation performance of a poly (vinyl alcohol) (PVA) membrane blended with 53 wt% of the ionic liquid 1-ethyl-3-methyl-imidazolium dicyanamide ([EMIM][DCA]), known from our previous work as highly CO2/H-2 reverse-selective material, under different experimental conditions. The material properties of the solution-cast membranes are discussed and compared with the neat PVA polymer. Pure gas permeation measurements show a drastic increase of permeability for all gases (H-2, He, O-2, N-2, CH4, and CO2) compared to the neat polymer, with a change from diffusion-selective to sorption-selective behaviour. The gas permeability further increases over the temperature range from 25 degrees C to 55 degrees C and is accompanied by a decrease in selectivity for most gas pairs, in particular, CO2/N-2 and CO2/CH4, except for the H-2/CO2 gas pair. Mixed gas permeation measurements with the CO2/CH4 mixture show a beneficial effect of humidity on permeability and selectivity. This is supported by vapour sorption measurements, which show the high affinity of the membrane for water vapour and the vapour of lower alcohols. Pracoviště Ústav chemických procesů Kontakt Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Rok sběru 2022 Elektronická adresa http://hdl.handle.net/11104/0327596
Počet záznamů: 1