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PRODUCTS
 
PSA Nitrogen Gas Generators
 
 How Does it work
 
The Nitrogen generator produces Nitrogen gas from atmospheric air using Molecular Sieves Seperation technique. It uses Carbon Molecular Sieves which has ability to preferentially remove oxygen from air. The process and supply of Molecular Sieves is licenced to us by Carbotech Industrieservice- Germany.


Nitrogen generator consists of 2-Beds filled with Carbon Molecular Sieves. When compressed air is passed, Nitrogen comes out as product gas from one bed while other bed is simultaneously regenerated by depressurisation to atmospheric pressure. This process is called “PRESSURE SWING ADSORPTION” (PSA).

 Nitrogen Purity

From Nitrogen Generator gas of purities from 99% to 99.9999% can be produced. Simple PSA Unit produces raw Nitrogen of 99% Purity. By adding Purification unit to PSA unit, high purity Nitrogen is produced. Following are the Generator Models to produce different Nitrogen purities:
 
 Nitrogen Generator Models
 
 “MS” Model
This is the simplest model Nitrogen Generator. It produces commercial grade Nitrogen of 99% purity very economically. However, if Carbon Molecular Sieves quantity is increased, even 99.999% purity Nitrogen can be produced from this model. Higher the purity, higher would be the investment and higher would be the running cost. This model is economical and is recommended for purity upto 99.9%. This model is commonly used for purging/inertizing applications.
 
 “DX” Model
This model is recommended for use in Metallurgical industries to provide oxygen free Nitrogen gas for Heat Treatment Furnaces. Here Oxygen is less than 1-ppm and at the same time Hydrogen is around 0.5 to 1% which is desirable as reducing constituent in, most of Heat Treatment applications.

By adding Palladium catalyst based Deoxo Purification Module in “MODEL-MS” Generator, it becomes “DX-MODEL” This model also finds applications in Chemical/Electronic Industries.

 
 “Copper-DX” Model
In certain applications where one needs very very pure gas free from Oxygen as well as Hydrogen, Nitrogen Purification Module based on Copper Deoxo Catalyst is added. By adding this Copper Catalyst Module to “MS Model” Generator, it becomes Model “Copper- DX”
This finds application in synthetic fiber, optical cables and electronic industries. Cost of production of Nitrogen from this model is higher.
 
Models
MS-L
MS-H
DX
COPPER-DX
GAS COMPOSITION
Oxygen


Hydrogen

Nitrogen


Dew Point




APPLICATIONS:

0.1 to 2 %


Nil

98-99.9%


(-)40ºC to
(-)80ºC



As Inert gas In Chemical Industries, Food & Pharmaceutical Industries, for fire control in Coal mines etc

10-ppm to 500ppm

Nil

99.5 to 99.999%

(-)60ºC to
(-)80ºC



As Inert gas in Chemical, Food Pharmaceutical Industries, Heat Treatment Furnaces, Electronic, Synthetic Fiber, Industries.

1 to 3ppm(max)

0.5% or more

Balance 99.9999%

(-)40ºC to
(-)80ºC



As Inert gas in Chemical & Pharmaceutical Industries. In applications where oxygen impurity is not acceptable.

1-ppm (max)


Nil




(-)40ºC to
(-)80ºC



As Inert gas in Electronic, Synthetic Fiber, Hitech Industries where one needs Ultra High Purity.


 Flow Scheme
 
 
 Advantages
Automatic Start-up time is only 5-Minutes.
Nitrogen gas supply always under your control.
Self-contained Skid mounted units for easy site installation.
Very low maintenance costs.
Very high reliability to run un-attended for months & months.
Carbon Molecular Sieves life is minimum 15-years and in most cases it lasts the whole life time of Gas Generator, never requiring replacement.
     
Nitrogen Cylinders         v/s         Nitrogen Generators
 
 Nitrogen Cylinders
 Nitrogen Generators
Cylinder Nitrogen Costs Rs.10/- to
Rs. 15/- per cubic meter		 Nitrogen Generator gas costs Rs.3/-per NM3 only.
Transfer and handling of Gas Cylinders is very cumbersome
due to high pressure risks.		 In-house Nitrogen generation as and when needed and in any quantity
Dependency on availability of Nitrogen Cylinders all the time. Continuous and reliable Nitrogen supply round the clock. Your production never suffers due to want of Nitrogen Gas.
Nitrogen purity in Cylinders is not reliable and changes from cylinder
to cylinder		 Nitrogen purity is very steady and reliable.
 
Gas Generators
  Membrane Nitrogen
  Oxygen Gas
  Hydrogen Gas
     
Intert Gas Generators
 
Exo Gas
Endo Gas
  Cracked Ammonia
  PSA Nitrogen + Methanol
     
Compressed Air /
Gas Drying Units
  Selection of Air Dryer
  Heatless Type
  Internal Heat Re-activated Type
  External Heat Re-activatedd Type
  Heat of Compression (HOC) Type
  Refrigerated Type
     
































































































































 

 

 

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