PSA Nitrogen Gas Plant Manufacturers

PSA Nitrogen Gas Plant Manufacturers

Nitrogen is a crucial gas for industries requiring an inert atmosphere, oxidation prevention, and enhanced process stability . We provide advanced nitrogen generation solutions that eliminate the dependency on traditional cylinder-based supply.

Pressure Swing Adsorption (PSA) Nitrogen Generators – Utilizes carbon molecular sieve (CMS) to separate oxygen and nitrogen from compressed air, achieving up to 99.999% purity . Ideal for pharmaceuticals, electronics, metallurgy, and food packaging .

1.1MS Model (Carbon Molecular Sieve PSA Nitrogen Plant)

Working Principle:

• The MS (Molecular Sieve) Model is the standard PSA nitrogen generation system.
• It uses Carbon Molecular Sieves (CMS), which selectively adsorb oxygen, moisture, and other impurities from compressed air while allowing nitrogen to pass through.
• The process relies on Pressure Swing Adsorption (PSA), meaning it cycles between adsorption (capturing oxygen) and desorption (releasing oxygen to the atmosphere).

Process Flow:

1. Compressed Air Supply: Atmospheric air is compressed using an air compressor and sent through pre-filters and a dryer to remove dust, oil, and moisture.
2. PSA Towers (Adsorption Phase): The compressed air enters dual adsorption towers filled with CMS, which adsorbs oxygen while allowing nitrogen to pass.
3. Regeneration Phase: While one tower is adsorbing oxygen, the second tower is depressurized to release the trapped oxygen and regenerate CMS.
4. Final Filtration: The purified nitrogen is sent through a fine filter to ensure it meets the required purity.
5. Nitrogen Delivery: The nitrogen gas is stored in a receiver tank and delivered to the application.

Purity Range:

• 95% to 99.999% nitrogen
• Residual oxygen: 100 ppm to 1%
• Pressure :Upto 10 barg

Key Components:

✔ Air Compressor – Supplies compressed air
✔ Air Dryer & Filters – Removes moisture, oil, and particles
✔ PSA Towers with CMS – Separates nitrogen from air
✔ Control Panel – Automates the process
✔ Nitrogen Receiver Tank – Stores nitrogen

Advantages:

✅ Low cost and energy-efficient operation
✅ No need for hydrogen or catalysts
✅ Reliable with a simple design

Industries & Applications:

✔ Food & Beverage Packaging – Prevents oxidation
✔ Tire Inflation – Extends tire life
✔ Metal Processing & Welding – Provides an inert atmosphere
✔ Pharmaceutical & Chemical Storage – Prevents contamination

And many others.

1.2 DX Model (Deoxo PSA Nitrogen Plant)

Working Principle:

• The DX (Deoxo) Model uses a hydrogen-based catalytic process to remove even trace amounts of oxygen.
• After the PSA process, a small amount of hydrogen (H₂) is injected into the nitrogen stream.
• The nitrogen-hydrogen mixture passes through a palladium or platinum-based catalyst , which reacts with the remaining oxygen to form water (H₂O).
• The water is then removed by a dryer to produce ultra-pure nitrogen.

Process Flow:

1. PSA Nitrogen Generation – The first stage is standard PSA separation using CMS.
2. Hydrogen Injection – A controlled amount of hydrogen (typically 2 times of oxygen content) is added.
3. Catalytic Reactor – The oxygen and hydrogen react in a palladium/platinum catalyst bed to form water (2H₂ + O₂ → 2H₂O).
4. Moisture Removal – A dryer (typically an adsorption dryer) removes the water vapor.
5. Final Purity Check & Storage – The high-purity nitrogen is stored in a receiver tank.

Purity Range:

• Up to 99.9995% Nitrogen (5.5-grade)
• Residual oxygen: < 5 ppm

Key Components:

✔ PSA System – Generates Raw Nitrogen
✔ Hydrogen Dosing System – Adds Precise H₂ either from Ammonia Cracker or Hydrogen Cylinder.
✔ Catalytic Reactor – Converts oxygen to water
✔ Dryer – Removes Moisture
✔ Final Filter & Purity Sensor – Ensures high purity

Advantages:

✅ Achieves higher purity than standard PSA
✅ Efficient oxygen removal with a controlled reaction
✅ Lower operating cost compared to Cu-Deoxo

Industries & Applications:

✔ Electronics & Semiconductor Manufacturing – Prevents oxidation
✔ Laser Cutting – Ensures clean cuts
✔ Pharmaceuticals – High-purity requirements
✔ Heat Treatment & Metallurgy – Provides an oxygen-free environment

1.3 CU-DEOXO MODEL (COPPER CATALYST PSA NITROGEN PLANT)

Working Principle:

• Instead of using hydrogen, the Cu-Deoxo model uses a copper catalyst to remove oxygen from the nitrogen stream.
• Oxygen reacts with the copper catalyst at high temperatures , forming copper oxide (CuO) and eliminating oxygen without adding hydrogen.
• The process works at temperatures between 180-250°C, requiring apreheating system.
• The final nitrogen is passed through a cooling and drying unit to remove any moisture.
• Regeneration of Cu-Deoxo tower is done by very little amount of Hydrogen mixed with nitrogen in order to remove the Oxygen absorbed in production cycle.

Process Flow:

1. PSA Nitrogen Generation – Similar to the MS Model, PSA separates nitrogen from compressed air.
2. Copper Deoxo Reactor – The oxygen in nitrogen reacts with a heated copper catalyst (2Cu + O₂ → 2CuO).
3. Cooling & Moisture Removal – The gas is cooled and passed through a dryer.
4. Final Filtration & Storage – The ultra-pure nitrogen is stored for use.

Purity Range:

• Up to 99.9999% nitrogen (6.0-grade)
• Residual oxygen: < 1 ppm

Key Components:

✔ PSA System – Initial nitrogen generation from MS model
✔ Copper Deoxo Reactor – Oxygen removal
✔ Heating System – Maintains reaction temperature
✔ Cooling & Dryer Unit – Removes heat and moisture
✔ Final Filter & Purity Sensor – Ensures ultra-high purity

Advantages:

✅ Very Less hydrogen required (safer operation)
✅ Ultra-high nitrogen purity (6.0-grade)
✅ Suitable for critical industries

Industries & Applications:

✔ Semiconductors & Microelectronics – Oxygen-free environment
✔ Optical Fiber Production – High-purity nitrogen needed
✔ Medical & Pharmaceutical – High-purity storage & processing
✔ Military & Aerospace – Sensitive applications