Nitrogen Generators

Nitrogen Generators

About Our Nitrogen Generators

Why buy bottled liquid nitrogen when you can make your own? We sell and service twin-tower nitrogen generators from PneuTech, leaders in compressed air and nitrogen generation. PneuTech nitrogen generators are designed for low operating costs, easy maintenance and long service life, so you are guaranteed a consistent supply of nitrogen at your purity specifications. 

The PneuTech Twin-Tower Nitrogen Generation system generates nitrogen using the cost-effective and reliable Pressure Swing Adsorption (PSA) technology. Available in purities from 97% to 99.999%, the NGO Series from PneuTech features: 

  • Oversized adsorption towers for consistent nitrogen flow
  • Long-lasting Carbon Molecular Sieve adsorptive material (10+ year material life!) 
  • Large flow piping to minimize turbulence and pressure drop
  • Large, stable adsorption beds for guaranteed nitrogen purity 
  • High-quality materials and components for maximum reliability and long service life
  • A practical design for easy access and low-cost maintenance 
  • FIVE YEAR parts and labor warranty 
Nitrogen Generators
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What industries can benefit from onsite nitrogen generation?

Nitrogen is used in processes like: blanketing of chemicals and pharmaceuticals, gas assisted injection molding (GAIM), laser cutting, food processing and packaging, heat treatment of ferrous & non-ferrous metals, inerting of flammable liquids, dust explosion prevention, re-flow and wave soldering of PCBs, and the UV-curing of coatings. Nitrogen is also used in electronics and soldering, modified or controlled atmospheric packaging for food and beverage, metal fabrication, and metal production.

Operations that utilize nitrogen in large quantities in their processes can realize large cost savings by purchasing and operating a nitrogen generator instead of purchasing liquid or gaseous nitrogen via truck delivery services. The savings can prove to over 75% and even 90%, depending on the amount of nitrogen utilization. Producing nitrogen onsite saves delivery costs, monthly cylinder/tank rental, loss from evaporation, purchasing and labor costs, and the hidden cost of additional site liability insurance.

How does a Pressure Swing Adsorption (PSA) nitrogen generator work?

A pressure swing adsorption oxygen or nitrogen generator, or PSA generator, uses adsorptive materials to separate nitrogen or oxygen from other gasses for use. They're among the most popular gas generators because they deliver very pure gas and are both cost- and eco-friendly.

Nitrogen generators extract nitrogen in the ambient air through a Pressure Swing Adsorption (PSA) process. Compressed and clean air passes through a molecular sieve bed, allowing the nitrogen to pass through and be captured as a product.

Adsorption is a process in which molecules of a liquid or gas are bound by physical or chemical means to the surface of a solid. Adsorptive materials such as activated carbon are composed of small beads with many tiny micropores inside to maximize the available surfaces that molecules can adsorb to. An adsorption nitrogen generator works by adsorbing oxygen and carbon dioxide gas and moisture from the air, leaving purified N2 gas. The most common adsorptive material is Carbon Molecular Sieve, tiny beads of carbon with thousands of microscopic pores. 

PSA nitrogen generators work using the basic principles of adsorption. The name comes from the way they use pressure swings to increase adsorption during the separation phase and then recharge the adsorbent material. A dual-chamber PSA enables continual nitrogen generation, with one chamber producing N2 while the other chamber recharges.

  • The rate of adsorption increases when the chamber is pressurized. Purified nitrogen gas is separated out of the chamber and stored when it reaches the desired level of purity. 
  • When the chamber is depressurized, excess oxygen and other gases trapped within the CMS pores are released, recharging the beads for the next cycle of pressurization and adsorption. 
  • Each chamber swings between a high-pressure nitrogen generation phase and a low-pressure regeneration phase, enabling continuous production of nitrogen gas.

What are the advantages of adsorption nitrogen generation?

Adsorption is the most widely used nitrogen generation technology. Adsorption offers a number of advantages. 

  • Purity: Adsorption can produce nitrogen gas with purity up to 99.9995% N2.
  • Operating Cost: Adsorption technologies have relatively low operating costs.
  • Reliability: Adsorption is a reliable way to produce N2 of a desired purity. 
  • Sustainability: The adsorptive material used in nitrogen generation can be regenerated and reused, making this a highly sustainable technology.

What does a Gas Generator do and how do they work?

As the name would imply, a gas generator generates nitrogen or oxygen gas for industries that need easy access to these gasses for their various applications, such as filling tires, cleaning or packaging. The operation of your gas generator depends on the type you're using. There are two main types of gas generators with different modes of action: pressure swing adsorption generators and membrane nitrogen generators.