Enhanced CO2 permeability in Matrimid® 5218 mixed matrix membranes for separating binary CO2/CH4 mixtures

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F19%3A43919317" target="_blank" >RIV/60461373:22310/19:43919317 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S1383586618324924?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S1383586618324924?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.seppur.2018.08.046" target="_blank" >10.1016/j.seppur.2018.08.046</a>

Result language
angličtina
Original language name
Enhanced CO2 permeability in Matrimid® 5218 mixed matrix membranes for separating binary CO2/CH4 mixtures
Original language description
Membrane gas separation is an emerging technology used for the separation of CO2. Matrimid® 5218, one of the current polymers used in membrane gas separation, has good selectivity, but poor CO2 permeability. We wondered if its CO2 permeability could be enhanced by the addition of a CO2-philic additive (PEG 200) and ZIF-8 nanoparticles. ZIF-8 particles were synthesized with a nanoparticle size of 33.83 ± 6.2 nm. These particles were characterized by SEM and XRD. Dense film-casting method was used to prepare novel ternary mixed matrix membranes with low PEG concentrations (4 wt%) at different filler loadings (10–40 wt%). In CO2/CH4 binary mixtures, binary and ternary MMMs membranes were tested at fixed feed composition (50:50) and different feed pressures (from 2 to 8 bar). The MMMs were also characterized using SEM, EDX, DSC, and TGA. Finally, the incorporation of 30 wt% of ZIF-8 nanoparticles leads to increase the CO2 permeability in binary (up to 31.47 Barrer) and ternary MMMs (up to 33.12 Barrer); pointing out that the addition of PEG and ZIF-8 enhanced the CO2 permeability in the neat Matrimid® membranes (7.16 Barrer). Our results suggest that such ternary MMMs have considerable potential for use in CO2 separation applications. © 2018 Elsevier B.V.
Czech name
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Czech description
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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

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)

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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