A favored CO2 separation over light gases using mixed matrix membrane comprising polysulfone/polyethylene glycol and graphene hydroxyl nanoparticles
Artikel i vetenskaplig tidskrift, 2020

A novel polysulfone (PSF) mixed matrix membrane blended by polyethylene glycol (5 and 10 wt.%) was synthesized in which the graphene hydroxyl (G-OH) nanoparticles incorporated. Polyethelene glycol (PEG) as an affordable additive provides a proper CO2 affinity. Moreover, the G-OH nanoparticles was enhanced the CO2 permeability in MMMs through Lewis acid- base interaction between electron withdrawing oxygen of -OH and CO2. First, PSF membrane was modified via adding PEG. Obtained results were shown that the CO2 permeability increased significantly from 15.9 Barrer (for neat PSF) to 28.2 Barrer (for PSF/PEG (10 wt%), while a fairly significant increase in CO2/CH4 selectivity (from 12.23 forneat PSF to 12.81 for PSF/PEG (10 wt%) at the pressure of 2 bar and temperature of 35 degrees C. Second, the G-OH nanoparticles were incorporated (1, 2, 3, 4 and 5 wt%) into the both PSF/PEG (5 wt%) and PSF/PEG(10 wt%) matrix to prepare the PSF/PEG/G-OH MMMs. Results showed the best CO2/CH4 selectivity was obtained at 5 wt% loading of G-OH for both PSF/PEG (5 wt%) and PSF/PEG (10 wt%) were 20.94 and 22.39, respectively; at pressure of 8 bar. The separation properties of membranes were also evaluated at higherfeed pressure and the obtained results were discussed. (C) 2019 Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.

Polyethylene glycol

CO2/CH4 separation

Graphene hydroxyl

Polysulfone

Mixed matrix membrane

Författare

Morassa Raouf

Mazandaran Univ Sci & Technol

Reza Abedini

Babol Nushirvani University of Technology

Mohammadreza Omidkhah

Tarbiat Modares University

Elham Nejadmoghadam

Chalmers, Kemi och kemiteknik, Kemiteknik, Kemisk apparatteknik

Process Safety and Environmental Protection: Transactions of the Institution of Chemical Engineers, Part B

0957-5820 (ISSN) 1744-3598 (eISSN)

Vol. 133 394-407

Ämneskategorier

Polymerkemi

Polymerteknologi

Bioteknisk apparatteknik

DOI

10.1016/j.psep.2019.11.002

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Senast uppdaterat

2020-02-11