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Device for separation of oxygen and nitrogen

  • US 9,186,622 B1
  • Filed: 06/11/2014
  • Issued: 11/17/2015
  • Est. Priority Date: 06/11/2014
  • Status: Active Grant
First Claim
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1. A method of separating oxygen from nitrogen, comprising:

  • coupling a source of air to a first side of a membrane comprising a polymer support and a layer comprising a plurality of zeolite nanosheet particles with thickness of 2 nm to 10 nm and mean diameter of 50 nm to 5000 nm;

    delivering the air such that a pressure differential between opposite sides of the membrane exists to cause oxygen in the hollow core to diffuse through the polymer support and the layer comprising zeolite nanosheet particles to the second side of the membrane, thereby producing nitrogen-enriched air on the first side of the membrane and oxygen-enriched air on the second side of the membrane.

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