Graphene oxide – Filled polyimide membranes in pervaporative separation of azeotropic methanol–MTBE mixtures

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F19%3A43919167" target="_blank" >RIV/60461373:22310/19:43919167 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S1383586619306859?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S1383586619306859?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.seppur.2019.05.034" target="_blank" >10.1016/j.seppur.2019.05.034</a>

Result language
angličtina
Original language name
Graphene oxide – Filled polyimide membranes in pervaporative separation of azeotropic methanol–MTBE mixtures
Original language description
Graphene oxide (GO)-polyimide mixed matrix membranes (MMMs)were produced using chloroform by solvent evaporation. These membranes have been used, for the first time, in pervaporation (PV)for the separation of azeotropic methanol (MeOH)- methyl tert-butyl ether (MTBE)mixtures (14.3 and 85.7%, respectively). The effect of GO loading in the PV process was investigated. The PV experiments were carried out at different feed operating temperatures (25–45 °C). Furthermore, an analysis of the PV process through the Arrhenius relationship has been given. The feed temperature (in the range of 25–45 °C)affected the permeation of both components producing an increase in total permeate flux; however, separation factor was compromised. Indeed, the best permeate fluxes (ca. 0.091 kg m−2 h−1)of the MMMs (4 wt% GO)were found at 45 °C, while the best separation factor (α = 28)was found at 1 wt% GO at 25 °C. In addition, the membranes were characterized by TGA, SEM, DSC, solvent uptake and mechanical test (Young's modulus). Finally, the performance of the GO-polyimide membranes was compared with other polymeric and MMMs membranes at the azeotropic conditions. © 2019
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
<a href="/en/project/LO1613" target="_blank" >LO1613: Future materials</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

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

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