Post Tagged with: "nitrogen generator"

The Great Use Of Nitrogen Generation System

February 3, 2019 at 6:22 am 0 comments

Businesses that produce own supply of on-site nitrogen are able to generate much or little nitrogen needed. Comprehensively, there are 2 ways to create on-site nitrogen. There is PSA (pressure swing adsorption) technology and membrane filtration. Purity and flow rates determine which technology is greatly suited for the application. If the business needs the use of nitrogen for the following:

  • Drying
  • Tank blanketing
  • Product transfer
  • Flushing
  • Purging
  • Inerting

All of these need a nitrogen generation system. It basically helps the plant’s compressed air supply is a source of producing on-site nitrogen. This can be a reliable and simple way to save money. Plus, it gives more control over the nitrogen gas used. But, the user should value on buying a quality brand nitrogen generator.

quality brand nitrogen generator

The types of on-site nitrogen

  • Membrane Technology. This is the first type of on-site nitrogen. The membrane nitrogen generators are usually used in the application with purity requirement below 99.5%. Membrane technology works to filter oxygen from the dry compressed air stream. By regulating the volume of the air passed through the membrane, the purity of the 02 Content (Nitrogen) can be adjusted. If necessary, the membrane modules can be added. This way, it is easy to expand as requirements alter. The applications best-suited to onsite nitrogen of the membrane filtration variation are:
    • Beer dispensing
    • Dry box storage of the assembled electronic components
    • Fire sprinkler systems
    • Fruit storage
    • Injection molding
    • Laser cutting (with nitrogen)
    • Mine fires
    • Power stations
    • Rapid prototyping
    • RIM (Reaction Injection Molding)
    • Snack food packaging
    • Tank blanketing
    • Tire filling
  • PSA (Pressure Swing Adsorption) Technology. This is the second type of on-site nitrogen. This type of nitrogen generator typically used in the applications where the clearness requirement is much high than 66.5%. Pressure Swing Adsorption technology uses 2 towers filled with CMS (Carbon Molecular Sieve). The compressed air enters the bottom of the online tower and it flows up through Carbon Molecular Sieve. Oxygen and the other trace gases preferentially adsorbed by the CMS. It allows nitrogen to pass through. The online tower will automatically switch to the regenerate mode after a pre-set time. It ventilates contaminants from the Carbon Molecular Sieve. CMS differs from ordinary activated carbon. This has a much narrower range of pore openings. This will allow the small molecules like oxygen to penetrate the pores. It also separates from the nitrogen molecules that are too large entering the CMS. The bigger molecules by-pass the Carbon Molecular Sieve and appear as nitrogen gas.