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Electrophoretic Crystallization of Ultrathin High-performance Metal-organic Framework Membranes
Published on: August 16, 2018
AlPO-18 membranes for CO2/CH4 separation.
Maria L Carreon1, Shiguang Li, Moises A Carreon
1Conn Center for Renewable Energy Research, University of Louisville, Louisville, KY 40292, USA.
Chemical Communications (Cambridge, England)
|January 21, 2012
Summary
Reproducible synthesis of Aluminum Phosphate-18 (AlPO-18) membranes enables efficient carbon dioxide (CO2) and methane (CH4) separation. These membranes show high CO2 permeance and selectivity for equimolar gas mixtures.
Area of Science:
- Materials Science
- Chemical Engineering
- Membrane Technology
Background:
- Continuous and reproducible synthesis of specialized membranes is crucial for industrial gas separation processes.
- Aluminum Phosphate-18 (AlPO-18) is a promising material for membrane-based separations due to its unique structural properties.
Purpose of the Study:
- To demonstrate the synthesis of reproducible and continuous AlPO-18 membranes.
- To evaluate the separation performance of these AlPO-18 membranes for carbon dioxide (CO2)/methane (CH4) gas mixtures.
Main Methods:
- Membrane synthesis using established procedures to ensure reproducibility and continuity.
- Gas permeation experiments were conducted using equimolar CO2/CH4 mixtures at specified temperatures and pressures.
Main Results:
- Successfully synthesized reproducible and continuous AlPO-18 membranes.
- Achieved high CO2 permeances up to ~6.6 × 10(-8) mol m(-2) s Pa.
- Demonstrated CO2/CH4 separation selectivities in the range of ~52-60 at 295 K and 138 kPa.
Conclusions:
- The developed AlPO-18 membranes exhibit excellent performance for CO2/CH4 separation.
- These findings highlight the potential of AlPO-18 membranes for efficient natural gas purification and carbon capture.
