scholarly journals Leveraging Nanocrystal HKUST-1 in Mixed-Matrix Membranes for Ethylene/Ethane Separation

Membranes ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 74 ◽  
Author(s):  
Chong Yang Chuah ◽  
S.A.S.C. Samarasinghe ◽  
Wen Li ◽  
Kunli Goh ◽  
Tae-Hyun Bae
Keyword(s):  
Metal Organic Framework ◽  
Accessible Surface Area ◽  
Gas Permeation ◽  
Mixed Matrix Membranes ◽  
Mixed Matrix Membrane ◽  
Mixed Matrix ◽  
Membrane Fabrication ◽  
Metal Organic ◽  
Accessible Surface ◽  
Matrix Membranes

The energy-intensive ethylene/ethane separation process is a key challenge to the petrochemical industry. HKUST-1, a metal–organic framework (MOF) which possesses high accessible surface area and porosity, is utilized in mixed-matrix membrane fabrication to investigate its potential for improving the performance for C2H4/C2H6 separation. Prior to membrane fabrication and gas permeation analysis, nanocrystal HKUST-1 was first synthesized. This step is critical in order to ensure that defect-free mixed-matrix membranes can be formed. Then, polyimide-based polymers, ODPA-TMPDA and 6FDA-TMPDA, were chosen as the matrices. Our findings revealed that 20 wt% loading of HKUST-1 was capable of improving C2H4 permeability (155% for ODPA-TMPDA and 69% for 6FDA-TMPDA) without excessively sacrificing the C2H4/C2H6 selectivity. The C2H4 and C2H6 diffusivity, as well as solubility, were also improved substantially as compared to the pure polymeric membranes. Overall, our results edge near the upper bound, confirming the effectiveness of leveraging nanocrystal HKUST-1 filler for performance enhancements in mixed-matrix membranes for C2H4/C2H6 separation.

Synergistic solution of CO2 capture by novel lanthanide-based MOF-76 yttrium nanocrystals in mixed-matrix membranes

2019 ◽  
Vol 31 (4) ◽  
pp. 692-712 ◽  
Author(s):  
Sadia Bano ◽  
Saadia R Tariq ◽  
Ayesha Ilyas ◽  
Muhammad Aslam ◽  
Muhammad R Bilad ◽  
...  
Keyword(s):  
Elevated Temperatures ◽  
Metal Organic Framework ◽  
Gas Permeation ◽  
Mixed Matrix Membranes ◽  
X Ray Diffraction ◽  
Mixed Matrix ◽  
The Family ◽  
Metal Organic ◽  
The Ideal ◽  
Matrix Membranes

A porous and thermally stable metal organic framework (MOF) of yttrium and 1,3,5-benzenetricarboxylate was synthesized, which belongs to the family of lanthanide-based MOF-76. Mixed-matrix membranes were developed by incorporating MOF-76 yttrium nanocrystals into Matrimid® 5218. The structure, composition, and morphology of synthesized lanthanide-based MOF-76 yttrium nanocrystals and mixed-matrix membranes were characterized by X-ray diffraction, Fourier-transform infrared spectroscopy, scanning electron microscopy, and thermogravimetric analysis. The characterizations and gas permeation results of the prepared mixed-matrix membranes confirmed better adhesion and distribution of filler particles in the polymer. The results demonstrated that the addition of MOF-76 yttrium nanocrystals to the polymer matrix improved both the gas selectivity and permeability of mixed-matrix membranes compared to pure Matrimid membranes. Permeability of CO2 increased from 7.24 to 27.29 Barrer by increasing the particle content from 0 to 30% in pure gas experiments. Whereas with 30 wt% concentration of MOF-76(Y) at 50:50 feed compositions, the selectivity increased for CO2/CH4 and CO2/N2 was 67% and 68%, respectively. The rise in temperature from 298 to 338 K decreased the ideal selectivity up to 25% for both gas pairs due to polymer chain relaxations at elevated temperatures. The commercial importance of membranes was evaluated at different feed compositions and operating temperatures.

scholarly journals Correlating MOF-808 parameters with mixed-matrix membrane (MMM) CO2 permeation for a more rational MMM development

2021 ◽  
Author(s):  
Raymond Thür ◽  
Daan Van Havere ◽  
Niels Van Velthoven ◽  
Simon Smolders ◽  
Aran Lamaire ◽  
...  
Keyword(s):  
Gas Separation ◽  
Metal Organic Framework ◽  
Mixed Matrix Membranes ◽  
Mixed Matrix Membrane ◽  
Mixed Matrix ◽  
Metal Organic ◽  
Organic Framework ◽  
Matrix Membranes

Consistent structure-performance relationships for the design of MOF (metal-organic framework)-based mixed-matrix membranes (MMMs) for gas separation are currently scarce in MMM literature. An important step in establishing such relationships could...

Flexible Metal-Organic Framework-Based Mixed-Matrix Membranes: A New Platform for H2 S Sensors

Small ◽  
2018 ◽  
Vol 14 (37) ◽  
pp. 1801563 ◽  
Author(s):  
Xin Zhang ◽  
Qi Zhang ◽  
Dan Yue ◽  
Jun Zhang ◽  
Jintong Wang ◽  
...  
Keyword(s):  
Metal Organic Framework ◽  
Mixed Matrix Membranes ◽  
Mixed Matrix ◽  
Metal Organic ◽  
Flexible Metal ◽  
Organic Framework ◽  
Matrix Membranes

scholarly journals Towards High Performance Metal-Organic Framework-Microporous Polymer Mixed Matrix Membranes: Addressing Compatibility and Limiting Aging by Polymer Doping

2018 ◽  
Vol 24 (49) ◽  
pp. 12796-12800 ◽  
Author(s):  
Anahid Sabetghadam ◽  
Xinlei Liu ◽  
Angelica F. Orsi ◽  
Magdalena M. Lozinska ◽  
Timothy Johnson ◽  
...  
Keyword(s):  
High Performance ◽  
Metal Organic Framework ◽  
Mixed Matrix Membranes ◽  
Mixed Matrix ◽  
Microporous Polymer ◽  
Metal Organic ◽  
Organic Framework ◽  
Matrix Membranes

Synthesis of Soluble Metal Organic Framework Composites for Mixed Matrix Membranes

2019 ◽  
Vol 11 (17) ◽  
pp. 15638-15645 ◽  
Author(s):  
Ignacio Luz ◽  
Lora Toy ◽  
Feras Rabie ◽  
Marty Lail ◽  
Mustapha Soukri
Keyword(s):  
Metal Organic Framework ◽  
Mixed Matrix Membranes ◽  
Mixed Matrix ◽  
Metal Organic ◽  
Organic Framework ◽  
Matrix Membranes
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