Skip to Content
Find More Like This
Return to Search

Hybrid membrane--PSA system for separating oxygen from air

United States Patent

January 25, 2011
View the Complete Patent at the US Patent & Trademark Office
Sandia National Laboratories - Visit the Intellectual Property Management and Licensing Website
A portable, non-cryogenic, oxygen generation system capable of delivering oxygen gas at purities greater than 98% and flow rates of 15 L/min or more is described. The system consists of two major components. The first component is a high efficiency membrane capable of separating argon and a portion of the nitrogen content from air, yielding an oxygen-enriched permeate flow. This is then fed to the second component, a pressure swing adsorption (PSA) unit utilizing a commercially available, but specifically formulated zeolite compound to remove the remainder of the nitrogen from the flow. The system is a unique gas separation system that can operate at ambient temperatures, for producing high purity oxygen for various applications (medical, refining, chemical production, enhanced combustion, fuel cells, etc . . . ) and represents a significant advance compared to current technologies.
Staiger; Chad L. (Albuquerque, NM), Vaughn; Mark R. (Albuquerque, NM), Miller; A. Keith (Albuquerque, NM), Cornelius; Christopher J. (Blackburg, VA)
Sandia Corporation (Albuquerque, NM)
12/ 269,540
November 12, 2008
FEDERALLY SPONSORED RESEARCH The United States Government has rights in this invention pursuant to Department of Energy Contract No. DE-AC04-94AL85000 with Sandia Corporation.