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Home » Products » PSA Nitrogen Plant » PSA Nitrogen Generator

PSA Nitrogen Generator

PSA Nitrogen Generator
PSA Nitrogen Generator
Product Code : ANGNP
Brand Name : Air-N-Gas
Price And Quantity
  • Unit of Measure
  • Plant/Plants
  • Minimum Order Quantity
Trade Information
  • Payment Terms
  • Cheque, Letter of Credit (L/C), Letter of Credit at Sight (Sight L/C), Telegraphic Transfer (T/T)
  • Sample Available
  • Yes
  • Main Export Market(s)
  • Asia, Australia, Central America, North America, South America, Eastern Europe, Western Europe, Middle East, Africa
  • Certifications
  • ISO 9001:2008
Product Description
Being an client centric organization, we are engaged in manufacturing a wide range of PSA Nitrogen Generator. These generators are used in pharmaceuticals, electrical, metal processing and food and beverage industries. Our PSA Nitrogen Generator operates through Pressure Swing Adsorption  principle which allows the nitrogen molecules to get isolated with other molecules present in compressed air (water, oxygen, CO2, etc). CMS, the adsorbent in the generator absorbs all those molecules and only allows to passes nitrogen through to the outlet. CMS is also connected with another vessel which works together for ensuring a continuous flow of nitrogen gas.  

Compressed air passes through a Twin Tower PSA module connected with automatic changeover valves.

Bottom of PSA towers is having Activated Alumina used for adsorbing moisture from compressed air which latter comes in contact with bed of carbon molecular sieves (CMS) which has special grade of absorbent and absorbs oxygen molecules. One of these two towers in involved in the production of nitrogen and other tower in regeneration which are inter-connected with automatic changeover valves.

Downstream equipment are useful in ensuring higher purity of oxygen during nitrogen production cycle which can be brought down using DEOXO Unit upto 1-3 PPM.

Palladium De-Oxo Unit:

In Nitrogen From PSA Unit, residual oxygen is mixed with Hydrogen and passed through Palladium Catalyst. Here, Hydrogen reacts with Oxygen to form water. This complete process is  exothermic and outlet gas gets cooled using After-Cooler. Afterwards, moisture vapor gets condensed, separates and drains out in moisture separator.

Mositure present in this nitrogen is removed in Gas Dryer and the outlet Nitrogen is at (-) 60 Deg C Dew Point (Atm).

Copper De-Oxo Unit

Copper De-Oxo units are used in place of hydrogen is not accepted. In this system, Oxygen present in Nitrogen is removed using Copper Catalyst as per following equation.

2Cu  +  O2  =   2CuO

Around 1800C this reaction takes place in an embedded heater. Before this, raw-nitrogen is passed through the heater which comes in contact with the copper catalyst. As a result, the out-going nitrogen is totally free from oxygen. CuO is converted back to copper using Hydrogen Nitrogen mixture in the tower under regeneration, hence copper catalyst gets regenerated as per the following reaction

CuO   +   H2    = Cu  +   H2O

Nitrogen Hydrogen mixture is used for reaction and two of the towers remains  for a period of 8 hours in Oxygen removal cycle. Latter gets changed over automatically which helps sequence timer installed in the control panel. At  2000C pure nitrogen gas regenerates from Copper Catalyst De-oxo Reactor and  the temperature is controlled with the help of tube type heat exchanger and  after-cooler.

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