Influence of Casting Solvents on CO<sub>2</sub>/CH<sub>4</sub> Separation Using Polysulfone Membranes

Polysulfone membranes exhibit resistance to high temperature with low manufacturing cost and high efficiency in the separation process. The composition of gases is an important step that estimates the efficiency of separation in membranes. As membrane types are currently becoming in demand for CO<...

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Main Authors: Roba M. Almuhtaseb, Ahmed Awadallah-F, Shaheen A. Al-Muhtaseb, Majeda Khraisheh
Format: Article
Language:English
Published: MDPI AG 2021-04-01
Series:Membranes
Subjects:
Online Access:https://www.mdpi.com/2077-0375/11/4/286
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author Roba M. Almuhtaseb
Ahmed Awadallah-F
Shaheen A. Al-Muhtaseb
Majeda Khraisheh
author_facet Roba M. Almuhtaseb
Ahmed Awadallah-F
Shaheen A. Al-Muhtaseb
Majeda Khraisheh
author_sort Roba M. Almuhtaseb
collection DOAJ
description Polysulfone membranes exhibit resistance to high temperature with low manufacturing cost and high efficiency in the separation process. The composition of gases is an important step that estimates the efficiency of separation in membranes. As membrane types are currently becoming in demand for CO<sub>2</sub>/CH<sub>4</sub> segregation, polysulfone will be an advantageous alternative to have in further studies. Therefore, research is undertaken in this study to evaluate two solvents: chloroform (CF) and tetrahydrofuran (THF). These solvents are tested for casting polymeric membranes from polysulfone (PSF) to separate every single component from a binary gas mixture of CO<sub>2</sub>/CH<sub>4</sub>. In addition, the effect of gas pressure was conducted from 1 to 10 bar on the behavior of the permeability and selectivity. The results refer to the fact that the maximum permeability of CO<sub>2</sub> and CH<sub>4</sub> for THF is 62.32 and 2.06 barrer at 1 and 2 bars, respectively. Further, the maximum permeability of CF is 57.59 and 2.12 barrer at 1 and 2 bars, respectively. The outcome selectivity values are 48 and 36 for THF and CF at 1 bar, accordingly. Furthermore, the study declares that with the increase in pressure, the permeability and selectivity values drop for CF and THF. The performance for polysulfone (PSF) membrane that is manufactured with THF is superior to that of CF relative to the Robeson upper bound. Therefore, through the results, it can be deduced that the solvent during in-situ synthesis has a significant influence on the gas separation of a binary mixture of CO<sub>2</sub>/CH<sub>4</sub>.
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spelling doaj.art-62344b19b7454fc984a30cb7a89416512023-11-21T15:28:12ZengMDPI AGMembranes2077-03752021-04-0111428610.3390/membranes11040286Influence of Casting Solvents on CO<sub>2</sub>/CH<sub>4</sub> Separation Using Polysulfone MembranesRoba M. Almuhtaseb0Ahmed Awadallah-F1Shaheen A. Al-Muhtaseb2Majeda Khraisheh3Department of Chemical Engineering, Qatar University, Doha P.O. Box 2713, QatarDepartment of Chemical Engineering, Qatar University, Doha P.O. Box 2713, QatarDepartment of Chemical Engineering, Qatar University, Doha P.O. Box 2713, QatarDepartment of Chemical Engineering, Qatar University, Doha P.O. Box 2713, QatarPolysulfone membranes exhibit resistance to high temperature with low manufacturing cost and high efficiency in the separation process. The composition of gases is an important step that estimates the efficiency of separation in membranes. As membrane types are currently becoming in demand for CO<sub>2</sub>/CH<sub>4</sub> segregation, polysulfone will be an advantageous alternative to have in further studies. Therefore, research is undertaken in this study to evaluate two solvents: chloroform (CF) and tetrahydrofuran (THF). These solvents are tested for casting polymeric membranes from polysulfone (PSF) to separate every single component from a binary gas mixture of CO<sub>2</sub>/CH<sub>4</sub>. In addition, the effect of gas pressure was conducted from 1 to 10 bar on the behavior of the permeability and selectivity. The results refer to the fact that the maximum permeability of CO<sub>2</sub> and CH<sub>4</sub> for THF is 62.32 and 2.06 barrer at 1 and 2 bars, respectively. Further, the maximum permeability of CF is 57.59 and 2.12 barrer at 1 and 2 bars, respectively. The outcome selectivity values are 48 and 36 for THF and CF at 1 bar, accordingly. Furthermore, the study declares that with the increase in pressure, the permeability and selectivity values drop for CF and THF. The performance for polysulfone (PSF) membrane that is manufactured with THF is superior to that of CF relative to the Robeson upper bound. Therefore, through the results, it can be deduced that the solvent during in-situ synthesis has a significant influence on the gas separation of a binary mixture of CO<sub>2</sub>/CH<sub>4</sub>.https://www.mdpi.com/2077-0375/11/4/286polysulfone (PSF)tetrahydrofuran (THF)chloroform (CF)membranegas separation
spellingShingle Roba M. Almuhtaseb
Ahmed Awadallah-F
Shaheen A. Al-Muhtaseb
Majeda Khraisheh
Influence of Casting Solvents on CO<sub>2</sub>/CH<sub>4</sub> Separation Using Polysulfone Membranes
Membranes
polysulfone (PSF)
tetrahydrofuran (THF)
chloroform (CF)
membrane
gas separation
title Influence of Casting Solvents on CO<sub>2</sub>/CH<sub>4</sub> Separation Using Polysulfone Membranes
title_full Influence of Casting Solvents on CO<sub>2</sub>/CH<sub>4</sub> Separation Using Polysulfone Membranes
title_fullStr Influence of Casting Solvents on CO<sub>2</sub>/CH<sub>4</sub> Separation Using Polysulfone Membranes
title_full_unstemmed Influence of Casting Solvents on CO<sub>2</sub>/CH<sub>4</sub> Separation Using Polysulfone Membranes
title_short Influence of Casting Solvents on CO<sub>2</sub>/CH<sub>4</sub> Separation Using Polysulfone Membranes
title_sort influence of casting solvents on co sub 2 sub ch sub 4 sub separation using polysulfone membranes
topic polysulfone (PSF)
tetrahydrofuran (THF)
chloroform (CF)
membrane
gas separation
url https://www.mdpi.com/2077-0375/11/4/286
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AT shaheenaalmuhtaseb influenceofcastingsolventsoncosub2subchsub4subseparationusingpolysulfonemembranes
AT majedakhraisheh influenceofcastingsolventsoncosub2subchsub4subseparationusingpolysulfonemembranes