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Hydrogen Purification Technology


Air Products, as a world leader in hydrogen production and purification, is offering for license patents covering both preferred adsorbents and cycles useful for hydrogen purification. These cycles and adsorbents have all been demonstrated in use at commercial facilities.


  • Improved H2 recovery.
  • Decreased cycle time.
  • Ability to separate H2 and CO2 simultaneously.
  • Minimizes off-gas concentration.


Priority Patent Docket No.

Adjusted Density Carbon for Hydrogen PSA US 6,027,549
Optimum Adsorbents for H2 Recovery By Pressure and Vacuum Swing Adsorption US 6,302,943
Pressure Swing Adsorption Process With Multiple Beds on Purge And/Or With Ten Beds and Four Pressure Equalization Steps US 6,379,431
Six Bed Pressure Swing Adsorption Process with Four Steps of Pressure Equalization US 6,454,838
Pressure Swing Adsorption Process With Reduced Pressure Equalization Time US 6,565,628
Layered Adsorption Zone for Hydrogen Production Swing Adsorption US 6,483,001
Use of Activated Carbon Adsorbent in Argon and/or Oxygen Controlling Hydrogen PSA US 6,261,343
Pressure Swing Adsorption Process With Multiple Adsorption Beds EP 01486245 A1
Layered Adsorption Zone for Hydrogen Production Swing Adsorption US 6,814,787


Air Products is offering licenses to practice this technology worldwide. There are no restricted fields of use

Hydrogen Purification Technology
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