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  2. Nitrogen generator - Wikipedia

    en.wikipedia.org/wiki/Nitrogen_generator

    Nitrogen generators are used in hypoxic air fire prevention systems to produce air with a low oxygen content which will suppress a fire. To prevent corrosion, nitrogen generators are used in place of or in conjunction with a compressed air system to provide supervisory nitrogen gas in place of air for dry pipe and pre-action fire sprinkler systems.

  3. Pressure swing adsorption - Wikipedia

    en.wikipedia.org/wiki/Pressure_swing_adsorption

    With this variant of PSA developed for use in laboratory nitrogen generators, nitrogen gas is produced into two steps: in the first step, the compressed air is forced to pass through a carbon molecular sieve to produce nitrogen at a purity of approximately 98%; in the second step this nitrogen is forced to pass into a second carbon molecular ...

  4. Hypoxic air technology for fire prevention - Wikipedia

    en.wikipedia.org/wiki/Hypoxic_air_technology_for...

    Hypoxic air systems can be integrated with the building management system and can include systems to recover the heat generated by the hypoxic air generator that, would otherwise be wasted. [ 5 ] Air with low oxygen concentration is transported to the protected volumes through dedicated pipes or, more simply, via an existing ventilation system .

  5. LAU-127 - Wikipedia

    en.wikipedia.org/wiki/LAU-127

    [1] [5] The units with nitrogen bottles contain a ADU-729/E Nitrogen Receiver Adapter to hold the bottles. [8] The LAU-128 is a version that is integrated for all models of McDonnell Douglas F-15 Eagle. It requires an ADU-552 (Missile Launcher Adapter) to provide sufficient wing clearance. Variants include the LAU-128A/A, LAU-128B/A, and LAU ...

  6. Air separation - Wikipedia

    en.wikipedia.org/wiki/Air_separation

    A nitrogen generator Bottle of 4Å molecular sieves. Pressure swing adsorption provides separation of oxygen or nitrogen from air without liquefaction. The process operates around ambient temperature; a zeolite (molecular sponge) is exposed to high pressure air, then the air is released and an adsorbed film of the desired gas is released.

  7. Gas separation - Wikipedia

    en.wikipedia.org/wiki/Gas_separation

    Oxygen concentrator – Device that removes nitrogen from air; Nitrogen generator; Industrial gas – Gaseous materials produced for use in industry; Air separation – Chemical process; Natural-gas processing – Industrial processes designed to purify raw natural gas

  8. Perkin triangle - Wikipedia

    en.wikipedia.org/wiki/Perkin_triangle

    To do this, a "pig" adapter can be added to the end of the condenser, or for better results or for very air-sensitive compounds, a Perkin triangle apparatus can be used. The Perkin triangle uses a series of glass or Teflon taps to allow fractions to be isolated from the rest of the still, without the main body of the distillation being removed ...

  9. Oxygen concentrator - Wikipedia

    en.wikipedia.org/wiki/Oxygen_concentrator

    An oxygen concentrator takes in air and removes nitrogen from it, leaving an oxygen-enriched gas for use by people requiring medical oxygen due to low oxygen levels in their blood. [4] Oxygen concentrators provide an economical source of oxygen in industrial processes, where they are also known as oxygen gas generators or oxygen generation plants.

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