Nitrogen Generators

Nitrogen Generators

There are many reasons to produce Nitrogen on-site instead of purchasing it from an outside vendor. Benefits of nitrogen generation include:  operation without interruption from changing cylinders, fixed and substantially lower costs (50% to 300% over bulk liquid, dewars, and cylinders), ease of install, quality and purity, and environmental sustainability.


According to Parker Balston, “Gas industry sources indicate that an air separation plant uses 1976 kJ of electricity per kilogram of nitrogen at 99.9%. Generation of 99.9% nitrogen in house using a PSA system is 1420 kJ. That means up to 28% fewer greenhouse gases are created by the generation of electricity with a typical nitrogen generator. At a purity of 98%, the energy required for in- house nitrogen drops to 796 kJ/kg. That means that in-house generation creates 62% fewer greenhouse gases from electrical power at that purity.”


Nitrogen is used in several industries and inside applications where the reduction of oxygen is necessary:

  • Food & Beverage – packaging to extend shelf life
  • Chemical Processing – blanketing tanks, edible oils, de-ionized water
  • Metal Processing – aluminum degassing
  • Laser Cutting
  • Power Generation – gas lift in the well, blanketing natural gas compressors during electrical generation
  • Boiler Layup
  • Cylinder Filling
  • Laboratory Nitrogen
  • Explosion Mitigation

Off the shelf and fully engineered and customized skid packages are available.

PSA - Pressure Swing Adsorption


Holtec PSA Nitrogen Generator

  • Various units can be a completely containerized membrane nitrogen generator for outdoor use
  • PSA nitrogen generator for use in the oil & gas industry
  • PSA nitrogen generator for 99.9995% purity used in metallurgy
  • Includes all components except compressor
  • Larger Niagara™ (HNS-395) PSA shown
  • All Holtec nitrogen generators can be spaced out with dryer, filtration, and tanks mounted on a common skid for easy site installation
Generon Nitrogen-Generators-Pressure-Swing-Adsorption-PSA.jpg

GENERON Nitrogen PSA Generator

GENERON Nitrogen PSA Generators separate nitrogen from compressed air utilizing Pressure Swing Adsorption (PSA) technologies. Compressed air, which consists of approximately 21% oxygen and 78% nitrogen, is passed through a bed of Carbon Molecular Sieve (CMS). The CMS preferentially adsorbs O2 and moisture, allowing the N2 to pass through as a product gas at the specified pressure. While one of the towers is in the adsorption phase, the other tower is being regenerated, by de-pressurizing and allowing the CMS to release the adsorbed gases to the atmosphere. The cycle then repeats, allowing for constant flow of a controlled nitrogen purity and flow.

  • Proven use in a variety of industries (chemical manufacturing, electronics, food packaging and more)
  • Up to 99.9% purity
  • Monobed & Dual Bed designs
  • No maintenance
  • Oxygen analyzer and alarms available
  • Controls
  • Twin tower
  • FSIS accepted
  • Complies with FDA and GFSI requirements
  • Custom systems for Zone II, Class I, Div II

i-Flow 6000 Series Nitrogen Generator

Common Nitrogen Applications:

  • Fire prevention
  • Gas flushing & modified atmosphere packaging
  • Nitrogen blanketing, inerting & purging
  • Laser cutting Pressure transfer
  • Sparging or stripping

A single i-Flow nitrogen gas generator system can produce:

  • Over 4000 litres per minute (240+ Nm3/hr)
  • Purities ranging from 95-99.9995% (ultra-high purity nitrogen).



Parker Membrane Generator

  • Complete packages
  • No electrical – safe for Class 1 environments
  • 95-99% purity
  • Dewpoints to -58 Deg F
  • FSIS accepted
  • Complies with FDA and GFSI requirements