scholarly journals Pebax-based composite membranes with high gas transport properties enhanced by ionic liquids for CO2 separation

RSC Advances ◽  
2017 ◽  
Vol 7 (11) ◽  
pp. 6422-6431 ◽  
Author(s):  
Mengdie Li ◽  
Xiangping Zhang ◽  
Shaojuan Zeng ◽  
Lu bai ◽  
Hongshuai Gao ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Transport Properties ◽  
Gas Separation ◽  
Gas Transport ◽  
Composite Membranes ◽  
Co2 Separation ◽  
Separation Performance ◽  
Gas Transport Properties ◽  
Gas Separation Performance

A series of composite membranes with high gas transport properties enhanced by IL and ZIF-8 have been developed. The influence of ionic liquid and ZIF-8 addition on gas separation performance were systematically investigated.

Photo-oxidative PIM-1 based mixed matrix membranes with superior gas separation performance

2015 ◽  
Vol 3 (33) ◽  
pp. 17273-17281 ◽  
Author(s):  
Lin Hao ◽  
Kuo-Sung Liao ◽  
Tai-Shung Chung
Keyword(s):  
Transport Properties ◽  
Gas Separation ◽  
Gas Transport ◽  
Mixed Matrix Membranes ◽  
Separation Performance ◽  
Mixed Matrix ◽  
Gas Transport Properties ◽  
Gas Separation Performance ◽  
Matrix Membranes

Photo-oxidative PIM-1 incorporated with ZIF-71 form well-dispersed mixed-matrix membranes with enhanced gas transport properties. These membranes have impressive separation performance for CO2/CH4 and O2/N2.

scholarly journals Tailored CO2-Philic Anionic Poly(ionic liquid) Composite Membranes: Synthesis, Characterization, and Gas Transport Properties

2020 ◽  
Vol 8 (15) ◽  
pp. 5954-5965 ◽  
Author(s):  
Irshad Kammakakam ◽  
Jason E. Bara ◽  
Enrique M. Jackson ◽  
Josu Lertxundi ◽  
David Mecerreyes ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Transport Properties ◽  
Gas Transport ◽  
Composite Membranes ◽  
Gas Transport Properties ◽  
Poly Ionic Liquid

scholarly journals Effect of methylation of ionic liquids on the gas separation performance of ionic liquid/metal–organic framework composites

CrystEngComm ◽  
2018 ◽  
Vol 20 (44) ◽  
pp. 7137-7143 ◽  
Author(s):  
Vahid Nozari ◽  
Muhammad Zeeshan ◽  
Seda Keskin ◽  
Alper Uzun
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Liquid Metal ◽  
Gas Separation ◽  
Metal Organic Framework ◽  
Separation Performance ◽  
Metal Organic ◽  
Gas Separation Performance ◽  
Organic Framework

[BMIM][PF6] and its methylated form, [BMMIM][PF6] were incorporated into CuBTC to examine the effect of methylation of ionic liquids (ILs) on the gas separation performance of the corresponding IL/metal–organic framework (MOF) composites.

scholarly journals The spirobichroman-based polyimides with different side groups: from structure–property relationships to chain packing and gas transport performance

RSC Advances ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 5086-5095
Author(s):  
Shuli Wang ◽  
Xiaohua Tong ◽  
Chunbo Wang ◽  
Xiaocui Han ◽  
Sizhuo Jin ◽  
...  
Keyword(s):  
Dihedral Angle ◽  
Gas Separation ◽  
Gas Transport ◽  
Critical Role ◽  
Polymer Membranes ◽  
Separation Performance ◽  
Structure Property ◽  
Chain Packing ◽  
Structure Property Relationships ◽  
Gas Separation Performance

Effect of substituents on the dihedral angle and chain packing plays a critical role in the enhancement in the gas separation performance of polymer membranes.

scholarly journals A Molecular Simulation Study of Silica/Polysulfone Mixed Matrix Membrane for Mixed Gas Separation

Polymers ◽  
2021 ◽  
Vol 13 (13) ◽  
pp. 2199
Author(s):  
Khadija Asif ◽  
Serene Sow Mun Lock ◽  
Syed Ali Ammar Taqvi ◽  
Norwahyu Jusoh ◽  
Chung Loong Yiin ◽  
...  
Keyword(s):  
Transport Properties ◽  
Molecular Simulation ◽  
Gas Separation ◽  
Membrane Separation ◽  
Gas Transport ◽  
Mixed Matrix ◽  
Mixed Gas ◽  
Gas Transport Properties ◽  
Simulation Results ◽  
Mixed Gases

Polysulfone-based mixed matrix membranes (MMMs) incorporated with silica nanoparticles are a new generation material under ongoing research and development for gas separation. However, the attributes of a better-performing MMM cannot be precisely studied under experimental conditions. Thus, it requires an atomistic scale study to elucidate the separation performance of silica/polysulfone MMMs. As most of the research work and empirical models for gas transport properties have been limited to pure gas, a computational framework for molecular simulation is required to study the mixed gas transport properties in silica/polysulfone MMMs to reflect real membrane separation. In this work, Monte Carlo (MC) and molecular dynamics (MD) simulations were employed to study the solubility and diffusivity of CO2/CH4 with varying gas concentrations (i.e., 30% CO2/CH4, 50% CO2/CH4, and 70% CO2/CH4) and silica content (i.e., 15–30 wt.%). The accuracy of the simulated structures was validated with published literature, followed by the study of the gas transport properties at 308.15 K and 1 atm. Simulation results concluded an increase in the free volume with an increasing weight percentage of silica. It was also found that pure gas consistently exhibited higher gas transport properties when compared to mixed gas conditions. The results also showed a competitive gas transport performance for mixed gases, which is more apparent when CO2 increases. In this context, an increment in the permeation was observed for mixed gas with increasing gas concentrations (i.e., 70% CO2/CH4 > 50% CO2/CH4 > 30% CO2/CH4). The diffusivity, solubility, and permeability of the mixed gases were consistently increasing until 25 wt.%, followed by a decrease for 30 wt.% of silica. An empirical model based on a parallel resistance approach was developed by incorporating mathematical formulations for solubility and permeability. The model results were compared with simulation results to quantify the effect of mixed gas transport, which showed an 18% and 15% percentage error for the permeability and solubility, respectively, in comparison to the simulation data. This study provides a basis for future understanding of MMMs using molecular simulations and modeling techniques for mixed gas conditions that demonstrate real membrane separation.

Exploring the influence of the cation type and polymer support in bis(fluorosulfonyl)imide-based plastic crystal composite membranes for CO2/N2 separation

2021 ◽  
Author(s):  
Fernando Ramos-Saz ◽  
Yady García ◽  
Colin S. M. Kang ◽  
Luke A. O'Dell ◽  
Maria Forsyth ◽  
...  
Keyword(s):  
Gas Separation ◽  
Analytical Techniques ◽  
Composite Membranes ◽  
Polymer Support ◽  
Separation Performance ◽  
Plastic Crystal ◽  
Cation Type ◽  
Crystal Composite ◽  
Gas Separation Performance ◽  
Polymer Type

A range of organic ionic plastic crystal-based composites for CO2 separation are reported. A variety of analytical techniques were used to elucidate the influence of ion and polymer type on the properties and gas separation performance.

scholarly journals The Effect of Microporous Polymeric Support Modification on Surface and Gas Transport Properties of Supported Ionic Liquid Membranes

Membranes ◽  
2015 ◽  
Vol 6 (1) ◽  
pp. 4 ◽  
Author(s):  
Alsu Akhmetshina ◽  
Ilsiya Davletbaeva ◽  
Ekaterina Grebenschikova ◽  
Tatyana Sazanova ◽  
Anton Petukhov ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Transport Properties ◽  
Gas Transport ◽  
Liquid Membranes ◽  
Polymeric Support ◽  
Supported Ionic Liquid ◽  
Gas Transport Properties ◽  
Supported Ionic Liquid Membranes
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