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Solid State Air Purification System

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Wayne Gellett

› 2013 Spring Symposium Presentation (PDF)
› Phase I Final Report (PDF)

The purpose of this proposed research is to develop a new air purification system based on a liquid membrane, capable of purifying carbon dioxide from air in a far more compact and energy efficient system than what is currently possible. The approach relies on recent advances in supported liquid membranes, which allow us to make mechanically stable, ultra-thin supported liquids that have permeability and selectivity for carbon dioxide over one order of magnitude greater than existing approaches. Most critically, because these membranes use a liquid as an active material, it is possible to electrochemically pump the carbon dioxide, making it viable to build an air purification system that uses no mechanical components such as compressors. Such an innovation will dramatically improve NASA's capabilities to sustain manned spacecraft, including missions to Mars or other long-term space habitation.

4 Quad Diagram that includes:  Problem Statement. Existing air revitalization system is overly complex and bulky.  Solution: Continuous flow, solid state air purification system  Benefits: High throughput with low weight, small footprint, >10X  reduction in power, Potentially improved reliability, eliminates sources of dust, eliminates all compressors, room temp operation, continuous process  Phase 1 Approach: Demonstrate electrochemical pumping of C O 2 in membrane configuration, present detailed trade ana
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Page Last Updated: July 28th, 2013
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