PSA Nitrogen Gas
We do Design & Engineering, Manufacturing and Installation
of Nitrogen generation systems for all applications, no matter
how large or small.
Nitrogen generators allow the user to produce their own
nitrogen using atmospheric air as raw material with well
proven PSA technology.
PRINCIPLE OF NITROGEN GAS GENERATION
Nitrogen gas from atmospheric air is separated by using Carbon
Molecular Sieves Technique . Carbon Molecular Sieves are used
in these generators to preferentially remove oxygen and other
minor gases from air .
The Nitrogen Gas Generators consist of a twin tower system
filled with Carbon Molecular Sieves. The process of "PRESSURE
SWING ADSORPTION" (PSA) is employed for smooth generation of
nitrogen. The compressed air is passed through one adsorber,
and Nitrogen comes out as product gas from it. The other
adsorber is simultaneously regenerated by de-pressurization to
MGS Nitrogen Pressure Swing Adsorption (NPSA)
Systems offer low-cost & in house nitrogen generation
MGS offers a wide range of nitrogen PSA Systems as per
client's requirement. The process parameters can be optimized
to meet specific flow, purity and pressure.
||From 1 Nm3/hr to 1000 Nm3/hr
||From 95% to 99.99%
||Ultra pure Nitrogen with purification unit
||(Nitrogen purity up to
99.9999% can be
Minus 50 Deg. C Normal
to minus 70 Deg. C can be achieved
||On-line / portable oxygen analyzer
||On-line / portable dew-point
||Glass tube Rota meter /
||Offered as per customer's
||Tailor made designs as per
customer's layout requirement
Nitrogen purity in the range of 99% to 99.9999% can be
produced through MGS Gas Generators. PSA ("MS" Model) Unit
produces raw Nitrogen of 99% to 99.99% purity. By adding
Purification Modules to this unit, Nitrogen of 99.9999% purity
may be produced. The Generator Models to produce Nitrogen with
higher levels of purity are as under:
TYPES OF NITROGEN GAS GENERATION SYSTEMS
|| "MGS-DX'' MODEL
|| "MGS-CU-DX" MODEL
This model is most common
to produce Nitrogen of a purity in range from 95% to 99%
purity. By increasing the quantity of Carbon
Molecular Sieves, even 99.999% purity Nitrogen can be
produced from this model. Higher the purity, higher would be
the running cost. Considering operating cost factor, this model is recommended for purity upto
99.9% only. Plants with such purity specification are used for purging/inertizing
Under this series of model
of nitrogen gas generators produce Nitrogen with oxygen
content of less that 1-ppm and variable percentage of
hydrogen which varies from 0.5 to 30% This hydrogen content
is desirable as reducing constituent in most of Heat
Treatment applications. This model is recommended for
use in Metallurgical industries to provide oxygen free
Nitrogen gas for Heat Treatment Furnaces. MS models can be
converted into this model by adding Halladium Deoxo reactor
and Dehydroation unit. This model also
finds applications in Chemical/Electronic Industries.
contains an extra Nitrogen Purification Module based on
Copper Deoxo Catalyst. This model finds application in
synthetic fiber, optical cables and electronic industries.
Cost of production of Nitrogen from this model is highest.
It produces very pure Nitrogen gas which is free from Oxygen
as well as Hydrogen. and finds its suitability for
applications where hydrogen contents are detrimental to the
Standard Gas Composition
||0.5 to 4%
||10-ppm to 0.5%
||1 to 3ppm (max)
||0.5% or more
||99.5 to 99.999%
||(-)40°C to (-) 80°C
||(-)60°C to (-) 80°C
||(-)40°C to (-)80°C
||(-)40°C to (-)80°C
|As Inert Gas in Chemical
Industries, Food & Pharmaceutical Industries, for fire
control in Coal Mines etc.
||As Inert Gas in Chemical
Food, Pharmaceutical Industries, Heat Treatment Furnaces,
Electronic, Synthetic, Fibre, Industries
||As Inert Gas in Chemical &
Pharmaceutical Industries In applications where oxygen
impurity is not tolerable.
||As Inert Gas in Electronic,
Synthetic Fiber, Hitech Industries where one needs Ultra
High Purity gases.
Note:- However a system can
be designed to suit individual's specific requirements.
Automatic Start and stop. Start-up
time is only 5-Minutes.
Nitrogen gas supply is always
Self-contained Skid mounted units
for easy installation.
Very low maintenance costs.
Very simple to operate.
Carbon Molecular Sieves life is
minimum 8-10 Years.
Very low cost of production.
Compact in size and design.
Pay back periods are very short in
the range of 1-2 years depending upon applications.
Standard PSA Nitrogen Gas Generators produce Nitrogen at a
pressure of 5.5 to 6.0Kg/cm²g. This pressure comes
automatically as feed air compressor supply feeds the
compressed air at 7Kg/cm²g pressure to the PSA Unit. By
increasing feed air pressure to 10Kg/cm²g, Nitrogen can be
produced at 8.5Kg/cm²g. pressure also. It is, however most
economical to run Air Compressor at around 7Kg/cm²g pressure
and produce Nitrogen at 5.5Kg/cm²g. pressure. If Nitrogen is
needed at high pressure, Nitrogen booster compressor is
provided after the gas generator. By this addition, it is
possible to compress Nitrogen gas to obtain desirable pressure
to suit individual's requirements.
NITROGEN STORAGE TANK
the outlet of PSA Nitrogen Generator, Nitrogen gas is
available at a pressure of around 5.5kg/cm2g. Storage Tank
receives Nitrogen from the Gas Generator and supplies it to
your process as per demand. Normally Nitrogen Storage System
of 1-hour capacity is considered to be adequate. For high
storage requirements, a Nitrogen Booster Compressor is
provided to store the gas at high pressures to keep storage
Tank size smaller. Nitrogen Storage Tanks are fabricated from
Boiler Quality Steel under 3rd party inspection. The Gas
Generator automatically trips when pressure reaches the set
value. When pressure in the tank falls, Gas Generator
For high purity Nitrogen Gas Generators, a Deoxo Unit is
provided where oxygen in nitrogen gas is removed by reacting
it with Hydrogen. This Hydrogen can be supplied either from
Hydrogen Cylinders or captive Hydrogen Generator based on
Ammonia Cracking Process. In smaller capacity Nitrogen Gas
Generators, Hydrogen requirement is very little, therefore
Hydrogen Cylinders are most economical. But, in bigger
capacity Nitrogen Gas Generators Ammonia Cracking unit works
out to be more economical.
NITROGEN CYLINDERS V/S NITROGEN GAS GENERATORS
Nitrogen Cylinder costs
Rs.10/- to Rs.15/-per Cubic Meter. which is very high in
campier to cost of Nitrogen produced from PSA based Nitrogen
Transfer and handling of Gas
Cylinders is very cumbersome due to high pressure risks.
Dependency on availability
of Nitrogen Cylinders all the time.
Nitrogen purity in Cylinders
is never reliable and changes from cylinder to cylinder.
There are many factors like
location, market demands transportation mishandling, left
over gas in the cylinders etc. which affect the availability
& economy of the main process.
NITROGEN GAS GENERATORS
Nitrogen Gas Generator gas
costs Rs.2/- per NM³ only.
In-house Nitrogen generation
as and when needed.
Continuous and reliable
Nitrogen supply round the clock. Production never suffers
due to shortage of Nitrogen Gas.
Nitrogen Purity is very
steady and reliable.
Plant handling is very easy.