Surface modification effect of carbon molecular sieve (CMS) on the morphology and separation performance of mixed matrix membranes

2019 ◽  
Vol 80 ◽  
pp. 106152 ◽  
Author(s):  
Amelia S. Wiryoatmojo ◽  
Hafiz Abdul Mannan ◽  
Rizwan Nasir ◽  
Hilmi Mukhtar ◽  
Dzeti Farhah Mohshim ◽  
...  
Author(s):  
Giovanni Golemme ◽  
Alfonso Policicchio ◽  
Eloisa Sardella ◽  
Giuseppina De Luca ◽  
Beatrice Russo ◽  
...  

2019 ◽  
Vol 137 (12) ◽  
pp. 48476 ◽  
Author(s):  
Mohamed Janshir Bin Gulam Mohamed ◽  
Hafiz Abdul Mannan ◽  
Rizwan Nasir ◽  
Dzeti Farhah Mohshim ◽  
Hilmi Mukhtar ◽  
...  

2015 ◽  
Vol 754-755 ◽  
pp. 869-873 ◽  
Author(s):  
Rizwan Nasir ◽  
Hilmi Mukhtar ◽  
Maizatul Shima Shaharun ◽  
Zakaria Man

Different compositions of carbon molecular sieve (CMS) were incorporated in polyethersulfone (PES) matrix to fabricate mixed matrix membranes (MMMs) by solution casting method. The characterization was carried out using field emission scanning electron microscopy (FESEM) analysis to investigate the morphology of membrane. FESEM images showed acceptable contacts between the filler particles and the polymer chains. The performance of the developed membrane is analyzed by single gas permeation measurement of high purity CO2 and CH4. Both CO2 permeance and CO2/CH4 selectivity increased with CMS loadings as compared to pure PES membrane. Experimental results showed that the highest value of CO2 permeance (66.71 GPU) and CO2/CH4 selectivity (10.94) can be achieved with 30 wt. % loading of CMS particles. This can be credited to size discrimination of CMS pores that falls between CO2 and CH4 kinetic diameters.


2016 ◽  
Vol 4 (27) ◽  
pp. 10627-10634 ◽  
Author(s):  
Stefan J. D. Smith ◽  
Cher Hon Lau ◽  
James I. Mardel ◽  
Melanie Kitchin ◽  
Kristina Konstas ◽  
...  

Addressing the mechanical weakness and physical aging of glassy mixed matrix membranes to realise their potential for enhancing the separation performance of current membrane technologies.


REAKTOR ◽  
2008 ◽  
Vol 12 (2) ◽  
pp. 68 ◽  
Author(s):  
Tutuk Djoko Kusworo ◽  
Ahmad Fauzi Ismail ◽  
Azeman Mustafa ◽  
Kang Li

The permeation rates of O2, N2, CO2 and CH4 has been studied for polyimide-polyethersulfone (PI/PES) blends-zeolite mixed matrix membranes synthesized in our laboratory. The study investigated the effect of zeolite loading and different zeolite type on the gas separation performance of these mixed matrix membranes. Frequency shifts and absorption intensity changes in the FTIR spectra of the PI/PES blends as compared with those of the pure polymers indicate that there is a mixing of polymer blends at the molecular level. Differential scanning calorimetry measurements of pure and PI/PES blends membranes have showed one unique glass transition temperature that supports the miscible character of the PI/PES mixture. The PI/PES-zeolite 4A mixed matrix membrane with 25 wt % zeolite loading produced the highest O2/N2 and CO2/CH4 selectivity of around 7.45 and 46.05, respectively.


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