scholarly journals The prospect of synthesis of PES/PEG blend membranes using blend NMP/DMF for CO2/N2 separation

2021 ◽  
Vol 28 (5) ◽  
Author(s):  
Fadel Abdul Hadi Juber ◽  
Zeinab Abbas Jawad ◽  
Bridgid Lai Fui Chin ◽  
Swee Pin Yeap ◽  
Thiam Leng Chew
Keyword(s):  
Gas Separation ◽  
Carbon Capture ◽  
Membrane Separation ◽  
Carbon Capture And Storage ◽  
Polymeric Membranes ◽  
Polymeric Membrane ◽  
Mixed Matrix Membranes ◽  
Separation Performance ◽  
Trade Off ◽  
Blend Membranes

AbstractCarbon dioxide (CO2) emissions have been the root cause for anthropogenic climate change. Decarbonisation strategies, particularly carbon capture and storage (CCS) are crucial for mitigating the risk of global warming. Among all current CO2 separation technologies, membrane separation has the biggest potential for CCS as it is inexpensive, highly efficient, and simple to operate. Polymeric membranes are the preferred choice for the gas separation industry due to simpler methods of fabrication and lower costs compared to inorganic or mixed matrix membranes (MMMs). However, plasticisation and upper-bound trade-off between selectivity and permeability has limited the gas separation performance of polymeric membranes. Recently, researchers have found that the blending of glassy and rubbery polymers can effectively minimise trade-off between selectivity and permeability. Glassy poly(ethersulfone) (PES) and rubbery poly(ethylene) glycol (PEG) are polymers that are known to have a high affinity towards CO2. In this paper, PEG and PES are reviewed as potential polymer blend that can yield a final membrane with high CO2 permeance and CO2/nitrogen (N2) selectivity. Gas separation properties can be enhanced by using different solvents in the phase-inversion process. N-Methyl-2-Pyrrolidone (NMP) and Dimethylformamide (DMF) are common industrial solvents used for membrane fabrication. Both NMP and DMF are reviewed as prospective solvent blend that can improve the morphology and separation properties of PES/PEG blend membranes due to their effects on the membrane structure which increases permeation as well as selectivity. Thus, a PES/PEG blend polymeric membrane fabricated using NMP and DMF solvents is believed to be a major prospect for CO2/N2 gas separation.

Effects of Ionic Liquid Blending in Polymeric Membrane: Physical Properties and Performance Evaluation

2014 ◽  
Vol 625 ◽  
pp. 680-684 ◽  
Author(s):  
Dzeti Farhah Mohshim ◽  
Hilmi Mukhtar ◽  
Zakaria Man
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Membrane Separation ◽  
Initial Study ◽  
Polymeric Membranes ◽  
Polymeric Membrane ◽  
Separation Performance ◽  
Operating Pressure ◽  
Membrane Gas Separation ◽  
Pes Membrane

— Polymeric membranes have been extensively used in membrane gas separation process. Nowadays, peoples are modifying the membrane by many ways like coating with ionic liquids to further enhance the membrane separation performance. In this project, ionic liquid modified polymeric membranes (ILMPM) have been successfully developed by blending the ionic liquids with the polymer via solvent evaporation method. The ionic liquid used was 1-ethyl-3-methylimidazolium bis (trifluoromethylsulfonyl) imide, ([emim][Tf2N]) and for comparison purpose, the compositions were varied at 10 and 20 wt/wt%. In general, the blending of [emim][Tf2N] and PES has produced dense membrane with miscible mixture without any phase separation. It was observed that, the CO2permeance of ILMPM has been improved about 271% as compared to the pure PES membrane. However, the CO2permeance decreased with increasing operating pressure, yet the ILMPM CO2permeance still higher than CO2permeance of pure PES membrane. In addition, the CO2/CH4separation performance has greatly increased about 162% as the IL composition is increased. This initial study has proven that IL helps to enhance of CO2permeation and improve selectivity.

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.

Interfacial Defects on Mixed Matrix Membranes and Mitigation Techniques for Gas Separation: A Review

2014 ◽  
Vol 625 ◽  
pp. 653-656 ◽  
Author(s):  
Biruh Shimekit ◽  
Azmi Mohd Shariff ◽  
Hilmi Mukhtar ◽  
Mohamad Azmi Bustam ◽  
Ali E.I. Elkhalifah ◽  
...  
Keyword(s):  
Gas Separation ◽  
Polymer Matrix ◽  
Polymeric Membranes ◽  
Mixed Matrix Membranes ◽  
Mixed Matrix ◽  
Trade Off ◽  
Interfacial Defects ◽  
Pore Blockage ◽  
Mitigation Techniques ◽  
Matrix Membranes

Development of novel mixed matrix membranes (MMMs) has become frontier candidates for improving the upper bound trade-off curve between permeability and selectivity of gases for industrial polymeric membranes. However, fabrication of ideal MMMs is practically challenging as the dispersion of inorganic phase into the polymer may produce polymeric-inorganic interfacial defects at the vicinity of the polymer matrix. For instance, the inorganic phase may cause interfacial void, polymer chain rigidification or partial pore blockage on the overall MMMs. Since there are only few studies that specifically focus on the issues of the interfacial morphology of MMMs, therefore, the present study provides brief description of the aforementioned interfacial (non-ideal) defects of MMMs and summarizes the techniques used to repair the interfacial defects for enhanced gas separation in MMMs.

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.

Ionic Liquid Polymeric Membrane: Synthesis, Characterization & Performance Evaluation

2013 ◽  
Vol 594-595 ◽  
pp. 18-23 ◽  
Author(s):  
Dzeti Farhah Mohshim ◽  
Hilmi Mukhtar ◽  
Zakaria Man
Keyword(s):  
Ionic Liquid ◽  
Membrane Separation ◽  
Ideal Gas ◽  
Gas Permeation ◽  
Polymeric Membranes ◽  
Polymeric Membrane ◽  
Separation Performance ◽  
Miscible Blends ◽  
Pes Membrane ◽  
The Ideal

Selected ionic liquids are known to enhance the absorption of CO2 for CO2 removal purpose. In the idea to improve the membrane separation performance for natural gas sweetening, ionic liquid modified polymeric membranes were fabricated by using polyethersulfone (PES) and blended with different composition of ionic liquid which are 5 wt% and 15 wt%. Each fabricated membranes were prepared and dried under solvent evaporation at 90°C. Dense structure observed from FESEM analysis indicated the miscible blends of ionic liquid and PES. TGA analysis showed all fabricated membranes are still containing solvent and this resembles that membrane drying period is still insufficient. All fabricated membranes were tested with ideal gas permeation test. From the result, the addition of ionic liquid has enhanced the ideal CO2 pemeance about 150% as compared to pure PES membrane. The ideal CO2/CH4 selectivity was also increase about 85% from the base but however, the separation index is still considered low and this may due to the presence of the solvent. This preliminary result has confirmed that the blending of ionic liquid with pure PES membrane has technically improved the membrane separation performance.

scholarly journals Nano-porous Zeolite and MOF Filled Mixed Matrix Membranes for Gas Separation

2021 ◽  
Vol 333 ◽  
pp. 04008
Author(s):  
Yongsheng Liu ◽  
Kyosuke Takata ◽  
Yu Mukai ◽  
Hidetoshi Kita ◽  
Kazuhiro Tanaka
Keyword(s):  
Gas Separation ◽  
Maxwell Model ◽  
Polymer Membrane ◽  
Mixed Matrix Membranes ◽  
Separation Performance ◽  
Mixed Matrix ◽  
Trade Off ◽  
Ideal Selectivity ◽  
Separation Performances ◽  
Matrix Membranes

The commercial SAPO-34 zeolite with 0.38 nm pore size and ZIF-8 particles with 0.34 nm aperture size were separately dispersed into different polymer matrix, to prepare the mixed matrix membranes (MMMs) for gas separation. The dispersed situation of the SAPO-34 and ZIF-8 particles in matrix and the influence of the fillers on the separation performance of the membrane had been investigated in this study. The as-synthesized MMMs showed a better trade-off between permeability and selectivity than the pure polymer membrane and the performance could exceed or close to the upper bound line of polymer membrane for CO2 and CH4 separation. The CO2 permeability and CO2/CH4 ideal selectivity of the 6FDA-mDAT MMM containing 40 wt% SAPO-34 zeolite was 190 barrer and ca. 60, respectively. The 6FDA-TrMPD based MMMs containing 20 wt% ZIF-8 provided a permeability of C3H6 and an ideal selectivity of C3H6/C3H8 at 24 barrer and ca. 17, respectively. These separation performances were in a suitable agreement of the theoretical value from Maxwell model.

scholarly journals Membranes for Gas Separation Current Development and Challenges

2015 ◽  
Vol 773-774 ◽  
pp. 1085-1090 ◽  
Author(s):  
Norwahyu Jusoh ◽  
Yin Fong Yeong ◽  
Kok Keong Lau ◽  
Mohd Shariff Azmi
Keyword(s):  
Gas Separation ◽  
Polymeric Materials ◽  
Membrane Technology ◽  
Polymeric Membrane ◽  
Inorganic Membrane ◽  
Mixed Matrix Membranes ◽  
Mixed Matrix Membrane ◽  
Separation Performance ◽  
Inorganic Membranes ◽  
Mixed Matrix

—A new bang of natural gas demand has opened up the opportunities towards the utilization of membrane technology for the purification process.The advantages in terms of smaller footprint, lower weight, minimum utility requirement and low labor intensity make them appropriate for wide scale applications. Polymeric membrane is one of the greatest emerging fields in membrane material development. Nevertheless, the separation performance of the existing polymeric materials were reached a limit in the trade-off between permeability and selectivity. The development of inorganic material gives a significance improvement in membrane performance but it outrageously expensive for many applications and having complicated procedure during fabrication process have limit the application of inorganic membrane in gas separation. Thus, a rapid demand in membrane technology for gas separation and the effort toward seeking the membranes with higher permeability and selectivity has motivated the development of mixed matrix membrane. Mixed matrix membrane (MMM) which incorporating inorganic fillers in a polymer matrix is expected to overcome the limitations of the polymeric and inorganic membranes. Apart from an overview of the different membrane materials for gas separation, this paper also highlights the development of mixed matrix membrane and challenges in fabrication of mixed matrix membranes.

scholarly journals Fabrication and Testing of Polymeric Membranes for Energy-Efficient Separation of Carbon Dioxide from Flue Gas

2020 ◽  
Author(s):  
Sara Elhoshee ◽  
Fatima Taqi ◽  
Amna Alabdullah ◽  
Mohamed Hassan ◽  
Azza Abouhashem
Keyword(s):  
Carbon Dioxide ◽  
Water Vapor ◽  
Carbon Capture ◽  
Membrane Separation ◽  
Carbon Capture And Storage ◽  
Polymeric Membranes ◽  
Carbon Dioxide Gas ◽  
Carbon Dioxide Co2 ◽  
Reduction Of Co2 ◽  
Cryogenic Distillation

One of the major problems the world is facing nowadays is Global Warming. The main ten Green House Gases (GHGs) include water vapor (H2O), carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O). The most abundant and dominant greenhouse gas is water vapor but concentration of water vapor depends on temperature and other meteorological conditions, and not directly upon human activities. CO2 is the second-most important one and that is why reduction of CO2 emissions is a vital area of research. Carbon capture and storage (CCS) is a major strategy that can be used to reduce GHGs emission. CCS divides into three methods: pre-combustion capture, oxy-fuel process, and post-combustion capture. Among them, post-combustion capture is the most important one because it offers flexibility and it can be easily added to the operational units. For CO2 capture, various technologies are used which include: absorption, adsorption, cryogenic distillation, and membrane separation. Our research focuses on one of the technologies for post-combustion capture, which is membrane separation. In this research, we fabricated four samples of polymeric membranes with different proportions of the components and then tested them for thermal stability, tensile strength, selectivity and permeability. The membrane can be modified by trying different mixtures of the forming polymers with different percentages. The separated carbon dioxide gas can be used in different applications like fire extinguishers, carbonated beverages or cooling systems. For the future recommendations finding more applications for the use of the separated carbon dioxide gas will benefit the environment and will make this project more successful. The same techniques could be used to fabricate membranes for purifying the methane gas. Further studies must be done to ensure the effectiveness of these membranes when used in the industry.

scholarly journals Influence of Blend Composition and Silica Nanoparticles on the Morphology and Gas Separation Performance of PU/PVA Blend Membranes

Membranes ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 82 ◽  
Author(s):  
Hemmat Shirvani ◽  
Saeid Maghami ◽  
Ali Pournaghshband Isfahani ◽  
Morteza Sadeghi
Keyword(s):  
Silica Nanoparticles ◽  
Gas Separation ◽  
Vinyl Alcohol ◽  
Silica Particles ◽  
Mixed Matrix Membranes ◽  
Poly Vinyl Alcohol ◽  
Separation Performance ◽  
Mixed Matrix ◽  
Blend Membranes ◽  
Gas Separation Performance

Polymer blending and mixed-matrix membranes are well-known modification techniques for tuning the gas separation properties of polymer membranes. Here, we studied the gas separation performance of mixed-matrix membranes (MMMs) based on the polyurethane/poly(vinyl alcohol) (PU/PVA) blend containing silica nanoparticles. Pure (CO2, CH4, N2, O2) and mixed-gas (CO2/N2 and CO2/CH4) permeability experiments were carried out at 10 bar and 35 °C. Poly(vinyl alcohol) (PVA) with a molecular weight of 200 kDa (PVA200) was blended with polyurethane (PU) to increase the CO2 solubility, while the addition of silica particles to the PU/PVA blend membranes augmented the CO2 separation performance. The SEM images of the membranes showed that the miscibility of the blend improved by increasing the PVA contents. The membrane containing 10 wt % of PVA200 (PU/PVA200–10) exhibited the highest CO2/N2~32.6 and CO2/CH4~9.5 selectivities among other blend compositions, which increased to 45.1 and 15.2 by incorporating 20 wt % nano-silica particles.

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