Logo

Separation of CO2 from CH4 using polysulfone/polyimide silica nanocomposite membranes

Man, Zakaria and Sikander, Rafiq and Maulud, Abdulhalim and Muhammad, Nawshad and Saikat, Maitra (2012) Separation of CO2 from CH4 using polysulfone/polyimide silica nanocomposite membranes. Separation and Purification Technology, 90 . pp. 162-172.

[img] PDF
Restricted to Registered users only

1608Kb

Abstract

Mixed matrix membranes (MMMs) were developed by incorporating inorganic silica nanoparticles into blends of polysulfone/polyimide (PSF/PI) asymmetric membranes for gas separation using phase inversion technique. The membranes were characterized by using scanning electron microscopy (SEM), Xray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA). SEM results show different morphologies of surfaces and cross-sections of the membrane where agglomeration is observed at 20.1 wt.% silica loading. TGA analysis indicates good thermal stability of the hybrid membranes. Permeation results show that CO2 permeance increased with the introduction of 5.2 wt.% silica contents (73.7 ± 0.2 GPU) in PSF/PI-20% blend and it increased with the increase in silica contents. With 15.2 wt.% silica contents, the highest permselectivity of aCO2=CH4 = 61.0 ± 0.3–60.2 ± 0.4 is observed for treated membrane at 2–10 bar. The selectivity using mixed gas test at various CO2/CH4 compositions shows consistent results with the ideal gas selectivity.

Item Type:Article
Subjects:T Technology > TP Chemical technology
Departments / MOR / COE:Departments > Chemical Engineering
ID Code:8606
Deposited By: Dr Zakaria Man
Deposited On:13 Dec 2012 11:39
Last Modified:19 Jan 2017 08:21

Repository Staff Only: item control page

Document Downloads

More statistics for this item...