Role of functional nanoparticles to enhance the polymeric membrane performance for mixture gas separation

2017 ◽  
Vol 48 ◽  
pp. 5-15 ◽  
Author(s):  
Pravin G. Ingole ◽  
Muhammad Irshad Baig ◽  
Wook Choi ◽  
Xinghai An ◽  
Won Kil Choi ◽  
...  
Keyword(s):  
Gas Separation ◽  
Polymeric Membrane ◽  
Membrane Performance ◽  
Functional Nanoparticles

Role of feed water biodegradable substrate concentration on biofouling: Biofilm characteristics, membrane performance and cleanability

2019 ◽  
Vol 150 ◽  
pp. 1-11 ◽  
Author(s):  
N.M. Farhat ◽  
L. Javier ◽  
M.C.M. Van Loosdrecht ◽  
J.C. Kruithof ◽  
J.S. Vrouwenvelder
Keyword(s):  
Substrate Concentration ◽  
Feed Water ◽  
Membrane Performance

Post-synthetic modification of CARDO-based materials: application in sour natural gas separation

2020 ◽  
Vol 8 (44) ◽  
pp. 23354-23367
Author(s):  
Ali Hayek ◽  
Abdulkarim Alsamah ◽  
Garba O. Yahaya ◽  
Eyad A. Qasem ◽  
Rashed H. Alhajry
Keyword(s):  
Natural Gas ◽  
Chemical Modification ◽  
Free Volume ◽  
Gas Separation ◽  
Polymeric Membrane ◽  
Fractional Free Volume ◽  
Gas Molecule

Chemical modification enhances gas molecule permeation through polymeric membrane matrices by increasing the fractional free volume.

Improvement in gas separation properties of a polymeric membrane through the incorporation of inorganic nano-particles

2011 ◽  
Vol 23 (7) ◽  
pp. 1101-1111 ◽  
Author(s):  
Ali Ghadimi ◽  
Somayeh Norouzbahari ◽  
Mohtada Sadrzadeh ◽  
Toraj Mohammadi
Keyword(s):  
Gas Separation ◽  
Nano Particles ◽  
Polymeric Membrane

scholarly journals Investigation on Nanocomposite Membrane of Multiwalled Carbon Nanotube Reinforced Polycarbonate Blend for Gas Separation

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
Ayesha Kausar
Keyword(s):  
Carbon Nanotube ◽  
Young’S Modulus ◽  
Gas Separation ◽  
Vinylidene Fluoride ◽  
Young's Modulus ◽  
Multiwalled Carbon Nanotube ◽  
Nanocomposite Membrane ◽  
Polymeric Membrane ◽  
Multiwalled Carbon ◽  
Phase Inversion Technique

Carbon nanotube has been explored as a nanofiller in high performance polymeric membrane for gas separation. In this regard, nanocomposite membrane of polycarbonate (PC), poly(vinylidene fluoride-co-hexafluoropropylene) (PVFHFP), and multiwalled carbon nanotube (MWCNT) was fabricated via phase inversion technique. Poly(ethylene glycol) (PEG) was employed for the compatibilization of the blend system. Two series of PC/PVFHFP/PEG were developed using purified P-MWCNT and acid functional A-MWCNT nanofiller. Scanning and transmission electron micrographs have shown fine nanotube dispersion and wetting by matrix, compared with the purified system. Tensile strength and Young’s modulus of PC/PVFHFP/PEG/MWCNT-A 1–5 were found to be in the range of 63.6–72.5 MPa and 110.6–122.1 MPa, respectively. The nanocomposite revealed 51% increase in Young’s modulus and 28% increase in tensile stress relative to the pristine blend. The A-MWCNT was also effective in enhancing the permselectivity αCO2/N2 (31.2–39.9) of nanocomposite membrane relative to the blend membrane (21.6). The permeability PCO2 of blend was 125.6 barrer; however, the functional series had enhanced PCO2 values ranging from 142.8 to 186.6 barrer. Moreover, A-MWCNT loading improved the gas diffusivity of PC/PVFHFP/PEG/MWCNT-A 1–5; however, filler content did not significantly influence the CO2 and N2 solubility.

A Review on Glassy Polymeric Membranes for Gas Separation

2014 ◽  
Vol 625 ◽  
pp. 701-703 ◽  
Author(s):  
Marjan Farnam ◽  
Hilmi Mukhtar ◽  
Azmi Mohd Shariff
Keyword(s):  
Gas Separation ◽  
Upper Bound ◽  
Review Paper ◽  
Glassy Polymer ◽  
Polymer Membranes ◽  
Polymeric Membranes ◽  
Polymeric Membrane ◽  
Mixed Matrix Membrane ◽  
Mixed Matrix ◽  
Trade Off

Polymeric membranes are widely used for gas separation purposes but their performance is restricted by the upper bound trade-off discovered by Robeson in 1991. The polymeric membrane can be glassy, rubbery or a blend of these two polymers. This review paper discusses the properties of glassy polymer membranes and their performance in gas separation. The area of improvement for glassy membrane with development of mixed matrix membrane is also highlighted.

scholarly journals Molecular Weight and Gas Separation Performance of Polyimide Membrane: Insight into Role of Imidization Route

2020 ◽  
Vol 24 (3) ◽  
Author(s):  
P. C. Tan ◽  
D. Y. Yiauw ◽  
G. H. Teoh ◽  
S. C. Low ◽  
Z. A. Jawad
Keyword(s):  
Molecular Weight ◽  
Gas Separation ◽  
Separation Performance ◽  
Synthesis Conditions ◽  
Polyimide Membrane ◽  
Gas Transport Properties ◽  
Thermal Imidization ◽  
Insight Into ◽  
Gas Separation Performance

Various methods have been explored to improve the gas separation performance of polyimide membrane for more viable industrial commercialization. Generally, polyimide membrane can be synthesized via two different methods: chemical imidization and thermal imidization routes. Due to the markedly different membrane synthesis conditions, the influence of imidization methods on the gas transport properties of resulting membrane is worthy of investigation. The polyimide produced from two imidization methods was characterized for its molecular weight. In overall, the molecular weight of thermally imidized polyimide was higher than that of chemically imidized one except ODPA-6FpDA:DABA as it was prone to depropagation at high temperature. It was observed that the chemically imidized ODPA-6FpDA:DABA membrane possessed better gas separation performance than the thermally imidized counterpart. In particular, it showed 12 times higher CO2 permeability (19.21 Barrer) with CO2/N2 selectivity of 5. After crosslinking, the CO2/N2 selectivity of the polyimide membrane was further improved to 11.8 at 6 bar of permeation pressure.

scholarly journals The CO2/CH4 Separation Potential of ZIF-8/Polysulfone Mixed Matrix Membranes at Elevated Particle Loading for Biogas Upgradation Process

2020 ◽  
Vol 10 (2) ◽  
pp. 213-219
Author(s):  
Putu Doddy Sutrisna ◽  
Ronaldo Pangestu Hadi ◽  
Jonathan Siswanto ◽  
Giovanni J Prabowo
Keyword(s):  
Renewable Energy ◽  
Gas Separation ◽  
Gas Permeability ◽  
Gas Permeation ◽  
Degree Of Crystallinity ◽  
Polymeric Membrane ◽  
Mixed Matrix Membranes ◽  
Separation Performance ◽  
Particle Loading ◽  
Inorganic Particles

Biogas is a renewable energy that has been explored widely in Indonesia to substitute non-renewable energy. However, the presence of certain gas, such as carbon dioxide (CO2), can decrease the calorific value and generate greenhouse gas. Hence, the separation of CO2 from methane (CH4) occurs as a crucial step to improve the utilization of biogas. The separation of CH4/CO2 can be conducted using a polymeric membrane that needs no chemical, hence considered as an environmentally friendly technique. However, the utilization of polymeric membrane in gas separation processes is hampered by the trade-off between gas throughput and selectivity. To solve this problem, the incorporation of inorganic particles, such as Zeolitic Imidazolate Framework-8 (ZIF-8) particles, into the polymer matrix to improve the gas separation performance of the membrane has been conducted recently. In this research, ZIF-8 has been incorporated into Polysulfone matrix to form ZIF-8/Polysulfone-based membrane by simple blending and phase inversion techniques in flat sheet configuration. The pure gas permeation tests showed an increase in gas permeability (26 Barrer compared to 17 Barrer) after the inclusion of ZIF-8 particles with a slight decrease in CO2/CH4selectivity for particle loading more than 15wt. %. Therefore, the membrane with 15wt. % of particles showed the best performance in terms of gas selectivity. This result was due to the aggregation of ZIF-8 particles at particle loading higher than 15wt. %. Chemical analysis indicated an interaction between filler and polymer, and there were increases in the degree of crystallinity after the incorporation of ZIF-8.

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