Gas separation performance of carbon dioxide-selective poly(vinyl alcohol)-ionic liquid blend membranes: The effect of temperature, feed pressure and humidity.
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F21%3A00552480" target="_blank" >RIV/67985858:_____/21:00552480 - isvavai.cz</a>
Alternative codes found
RIV/60461373:22310/21:43923353 RIV/60461373:22340/21:43923353
Result on the web
<a href="http://hdl.handle.net/11104/0327596" target="_blank" >http://hdl.handle.net/11104/0327596</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.seppur.2021.118812" target="_blank" >10.1016/j.seppur.2021.118812</a>
Alternative languages
Result language
angličtina
Original language name
Gas separation performance of carbon dioxide-selective poly(vinyl alcohol)-ionic liquid blend membranes: The effect of temperature, feed pressure and humidity.
Original language description
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.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20402 - Chemical process engineering
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Separation and Purification Technology
ISSN
1383-5866
e-ISSN
1873-3794
Volume of the periodical
270
Issue of the periodical within the volume
SEP 1
Country of publishing house
GB - UNITED KINGDOM
Number of pages
9
Pages from-to
118812
UT code for WoS article
000652642100006
EID of the result in the Scopus database
2-s2.0-85106297238