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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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&apos;s modulus). Finally, the performance of the GO-polyimide membranes was compared with other polymeric and MMMs membranes at the azeotropic conditions. © 2019

Název v anglickém jazyce

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

Popis výsledku anglicky

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&apos;s modulus). Finally, the performance of the GO-polyimide membranes was compared with other polymeric and MMMs membranes at the azeotropic conditions. © 2019

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20402 - Chemical process engineering

Projekt

<a href="/cs/project/LO1613" target="_blank" >LO1613: Výzkum nových materiálů pro chemický průmysl</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Separation and Purification technology

ISSN

1383-5866

e-ISSN

—

Svazek periodika

224

Číslo periodika v rámci svazku

October

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

265-272

Kód UT WoS článku

000472686400027

EID výsledku v databázi Scopus

2-s2.0-85065528077