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Multilayer polymeric composite membrane for gas separation

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Title Multilayer polymeric composite membrane for gas separation
 
Creator Gobi, N.
Kumar, S. Karthick
Karthikeyan, C.
Nandhini, S.
Hazel, D.
 
Subject Casting solution
Gas separation
Nanoparticles
Polymeric membrane
Permeability
 
Description 749-761
Gas separation is the process of separating primary gaseous components from the composition of air. The separated
primary gaseous components are essential for many industrial purposes such as chemical, medical, aeronautical, food
processing industries. Oxygen enriched air plays a crucial role in the fuel combustion process and medical applications.
Membrane technology emerges in the field of gas separation due to its inherent multidirectional characteristics.
The multilayer composite polymeric membrane has been developed using electrospun web, nonwoven substrate and casting
polymer solution to improve the permeability and selectivity of oxygen gas molecule from the gas mixture. This membrane
also consists of polyethylene glycol (PEG) and SiO2 nanoparticles which are used to improve the permeability and
selectivity of oxygen molecules. Box- Behnken design has been wielded for the membrane construction by three
independent variables such as volume of electrospinning solution (mL), Casting Solution (mL) and PEG concentration (%).
Oxygen separation is carried out using the gas separation unit and it is constructed based on the principle of air separation.
To analyze the performance of the developed membrane, the purity of oxygen from the composite membrane is estimated by
a GC-MS. Mass per unit area and thickness of all membrane samples has been tested. From the results, the electrospun web
thickness and casting solution concentration directly influence the oxygen purity and air separation rate. SiO2 nanoparticles
are added to the casting solution and the electrospun web. The presence of SiO2 in the top and bottom layer of the membrane
is used to attract the O2 molecules. Maximum oxygen purity was obtained from the membrane which has an electrospun web
with 6mL and 30% casting solution with 2% PEG. From this flat sheet composite membrane, the purity range of oxygen is
42.2% with moderate permeability flux.
 
Date 2024-09-13T11:43:52Z
2024-09-13T11:43:52Z
2024-09
 
Type Article
 
Identifier 0975-0991 (Online); 0971-457X (Print)
http://nopr.niscpr.res.in/handle/123456789/64530
https://doi.org/10.56042/ijct.v31i5.9172
 
Language en
 
Publisher NIScPR-CSIR,India
 
Source IJCT Vol.31(5) [September 2024]