Skip to Content
Find More Like This
Return to Search

Hybrid System for Separating Oxygen from Air

Sandia National Laboratories

Contact SNL About This Technology


PDF Document PublicationMarket Sheet (765 KB)

Technology Marketing Summary

Sandia has developed a portable, oxygen generation system capable of delivering oxygen gas at purities greater than 98 percent and flow rates significantly greater than commercially available systems.

DescriptionThe method devised by Sandia uses highly selective permeable membranes to enrich the stream flowing to a much smaller PSA separation unit, reducing the size and the energy demands of an ambient temperature gas separation process. Benefits
  • A portable, noncryogenic oxygen generation system
  • Capable of delivering oxygen gas at purities greater than 98%
  • Method reduces the size and energy demands of the gas separation process
Applications and Industries
  • Chemicals
  • Healthcare
  • Oil and Gas
  • Refining
  • Medical Devices
  • Enhanced Combustion
  • Fuel Cells
Patents and Patent Applications
ID Number
Title and Abstract
Primary Lab
Patent 7,875,101
Hybrid membrane--PSA system for separating oxygen from air
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.
Sandia National Laboratories 01/25/2011
Technology Status
Technology IDDevelopment StageAvailabilityPublishedLast Updated
Patent# 7,875,101 SD# 10351Development - Key elements of the technology have been demonstrated in relevant environments.Available - Various license and partnering options are available. Please contact the Intellectual Property department to discuss.04/25/201103/12/2013

Contact SNL About This Technology

To: Technology Inquiries<>