Innovative water-based dynamic liquid bubble membrane generation device for gas/vapour separation.
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F22%3A00559913" target="_blank" >RIV/67985858:_____/22:00559913 - isvavai.cz</a>
Výsledek na webu
<a href="https://hdl.handle.net/11104/0333039" target="_blank" >https://hdl.handle.net/11104/0333039</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.cej.2022.138233" target="_blank" >10.1016/j.cej.2022.138233</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Innovative water-based dynamic liquid bubble membrane generation device for gas/vapour separation.
Popis výsledku v původním jazyce
Gas and vapour separation by membrane technology has become a promising method because of its high energy efficiency and low capital investment. Here, we demonstrate a proof of concept of the design of a new type of liquid membrane called the “dynamic liquid bubble membrane” (DLBM) connected by plateau borders. The DLBM is composed of a network of bubbles formed by passing a gaseous mixture through water containing a surfactant. The bubble network serves as a membrane to selectively separate the gases/vapours of mixtures according to the different solubilities of the gases in the bubble liquid. To the best of our knowledge, this type of liquid foam has not been described previously. The effects of key experimental factors, such as the surfactant concentration in the water of the membrane solution and the bubble velocity (controlled by the slope of the device) of the DLBM, on the CO2/CH4 separation performance were investigated. The retentate gas (CH4) remained over 99.9 % for the high CH4 concentration injection mixture (>66.7 % CH4). Then, O2/CO2 was used to simulate the fluid of the alveolar lining during the full in-breath process. We found that carbon dioxide transferred outside the bubble film, while oxygen was retained inside the bubble. This finding supports a further understanding of the CO2 transport mechanism of alveoli. We further demonstrated that the thickness of the bubble film was closely correlated to mass transfer resistance theory, while the gas selectivity was completely unaffected. This innovative DLBM generation device is a highly attractive and promising prototype for designing a green and highly efficient gas/vapour separation membrane technology.
Název v anglickém jazyce
Innovative water-based dynamic liquid bubble membrane generation device for gas/vapour separation.
Popis výsledku anglicky
Gas and vapour separation by membrane technology has become a promising method because of its high energy efficiency and low capital investment. Here, we demonstrate a proof of concept of the design of a new type of liquid membrane called the “dynamic liquid bubble membrane” (DLBM) connected by plateau borders. The DLBM is composed of a network of bubbles formed by passing a gaseous mixture through water containing a surfactant. The bubble network serves as a membrane to selectively separate the gases/vapours of mixtures according to the different solubilities of the gases in the bubble liquid. To the best of our knowledge, this type of liquid foam has not been described previously. The effects of key experimental factors, such as the surfactant concentration in the water of the membrane solution and the bubble velocity (controlled by the slope of the device) of the DLBM, on the CO2/CH4 separation performance were investigated. The retentate gas (CH4) remained over 99.9 % for the high CH4 concentration injection mixture (>66.7 % CH4). Then, O2/CO2 was used to simulate the fluid of the alveolar lining during the full in-breath process. We found that carbon dioxide transferred outside the bubble film, while oxygen was retained inside the bubble. This finding supports a further understanding of the CO2 transport mechanism of alveoli. We further demonstrated that the thickness of the bubble film was closely correlated to mass transfer resistance theory, while the gas selectivity was completely unaffected. This innovative DLBM generation device is a highly attractive and promising prototype for designing a green and highly efficient gas/vapour separation membrane technology.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
20402 - Chemical process engineering
Návaznosti výsledku
Projekt
<a href="/cs/project/GC19-23760J" target="_blank" >GC19-23760J: Vývoj nových organicko-anorganických kompozitních materiálů na bázi dendrimerů jako efektivních sorbentů plynů a par</a><br>
Návaznosti
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2022
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Chemical Engineering Journal
ISSN
1385-8947
e-ISSN
1873-3212
Svazek periodika
450
Číslo periodika v rámci svazku
15 Dec
Stát vydavatele periodika
NL - Nizozemsko
Počet stran výsledku
10
Strana od-do
138233
Kód UT WoS článku
000888190500006
EID výsledku v databázi Scopus
2-s2.0-85134793647