Advanced Nanocomposite Membrane for Natural Gas Purification
- Fabrication of “Defect-free” thin-film composites
- 10X flux and 2X CO2/CH4 selectivity improvements
- Prevention of thin films from densification (aging)
Relative to conventional cellulose acetate (CA) membranes, the proposed MOF membrane materials would have improved separation properties, excellent stability in process environments, and the ability to be manufactured as thin-film composite or asymmetric membranes. This would markedly reduce the size and weight of the systems. It will also eliminate the need for multi-stage processes, simplifying the process markedly and decreasing emissions/waste and energy consumption per unit mass of pipeline-grade natural gas produced. The proposed nanocomposite membranes systems will have 10x higher flux and will be 10x smaller and lighter (important for offshore applications on platforms) with hydrocarbon waste/emissions reduction by 50%.
The University of Texas at Austin brings extensive experience in gas separation membranes as well as asymmetric hollow fiber and flat sheet membrane manufacturing capabilities for production of the prototype membrane. Commonwealth Scientific and Industrial Research Organization (CSIRO) has pioneered the continuous flow production of nanoporous materials and have reported record efficiencies. They also have access to all the requisite chemical synthesis and characterization facilities, as well as gas permeation testing facilities for scale up and pilot testing.