Membrane for the separation of CO2 in medical systems

In the field of medical systems, removing CO2 contributes to a more effective recycling of anaesthesia gas, thereby reducing costs and improving the working environment in the operating room. Gas separation membranes offer a more cost-efficient and less complex alternative to traditional gas separation technologies – largely lime soda filters – used in medical anaesthesia systems. The ideal membrane exhibits high selectivity and high permeability.

NTNU researchers have identified and developed a novel fixed-site-carrier composite membrane for the separation of carbon dioxide(C02) from gas streams.

Significant research has been undertaken in efforts to develop membranes exhibiting high permeability and selectivity, as well as stability and durability. An approach to overcome the above challenges has been developed by casting carriers directly into the polymer structure of the membranes. The results are very promising.

• High stability and durability
• No contamination of gas flow
• Significant improvement in flux and selectivity; 30 x Power of Separation (POS) compared to traditional membranes

• Anaesthesia systems (alternative to soda lime filters)
• Life support systems (military, space, fire & rescue)

Inventor(s): Lise Lyngsnes Randeberg, May-Britt Hägg, Nkim Taek-Joong, Li Baoan

Type of Offer: Licensing

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