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International Journal of Material Science Innovations
IJMSI 2021, 11 pages - Article ID: IJMSI-2302202112839
Separation of CO2/CH4 by blended Polysulfone/ABS-Silica Nanocomposite Membranes
aDepartment of Chemical Engineering, Arak University, Arak, Iran
bDepartment of Chemical Engineering, Arak Branch, Islamic Azad University, Arak, Iran
ABSTRACT
In the present study, Polysulfone/ABS-10% composite and Polysulfone/ABS-10%-silica nanocomposite membranes prepared for CO2 separation from CH4. A dense blend polymeric membrane with two partially miscible polymers was made and nano-silica was added into it to improve gas transport properties. The membranes were prepared by solution casting method and characterized by Fourier transform infrared spectroscopy (FTIR), and Scanning electron microscopy (SEM). Transport characteristics of single gas for CO2 and CH4 were investigated by the single gas test. Feed pressure altered from 2 to 6 bars and temperature kept at 25 ?. The gas permeability of methane and carbon dioxide were evaluated as a function of silica concentration. Permeability results show that by adding silica nanoparticles into the PSF/ABS matrix, permeability of both CO2 and CH4 increased and loading up to 3 wt.% increased the selectivity of CO2/CH4 from 9.13 to 24.48 Barrer at 2 bars.