WELCOME TO GAZTRON Engineering Pvt Ltd A Leading Designer, Manufacturer & Exporters of PSA Nitrogen GAS Generator and Oxygen GAS Plants

GAZTRON ENGINEERING PVT LTD , (An ISO 9001-2015 Certified Co.)

+91 8447203393,+91-9667849547


We are manufactures and exporter of MS Model PSA Gas Generators & Plants, MS Model Gas Generator is for purity of ranging from 90 % to 99.99 % and this model is widely used by industry for different applications it is most popular model in GAS GENERATORS.

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We are manufactures and exporter of MS Model PSA Gas Generators & Plants, MS Model Gas Generator is for purity of ranging from 90 % to 99.99 % and this model is widely used by industry for different applications it is most popular model of in GAS GENERATORS.

Models and available ranges

RANGE OF PLANT CAPACITY                -              5 to 1000 nm3/ Hr.

NITROGEN PURITY                                   -              85 T0 99.6 %

BALANCE OXYGEN CONTENT               -              5 T0 0.5 %

RANGE OF DEW POINT                           -              -20 TO -40 Deg Cent

DISCHRGE PRESSURE                              -              5 TO 25 Kg/ CM2

Some of Application of MS model PSA based nitrogen gas generator

As Inert gas in Chemical Industries, Food / Packaging, Furnaces, Pharmaceutical Industries. For fire control in Coal mines, Automobile tyres, Air driven tools and machinery, Bacteria elimination (food packing), Beverage mixing/dispensing, Blanketing for adhesive curing, Brazing, Bright annealing, Cable splice drying, Cement plant, Chemicals plants/ refineries, Coal mine fire prevention, Oil recovery enhancement/oil extraction

Heat treating, Injection mounding, Nitrogen tire inflation

Working principal

IF air is passed under pressure through a vessel containing an adsorbent bed of CMS that attracts OXYGEN more strongly than it does Nitrogen, part or all of the OXYGEN will stay in the bed, and the gas coming out of the vessel will be enriched in Nitrogen. When the bed reaches the end of its capacity to adsorb OXYGEN, it can be regenerated by reducing the pressure, thereby releasing the adsorbed OXYGEN. It is then ready for another cycle of producing Nitrogen enriched air.

P S A (Pressure Swing Adsorption) is an advanced air separation technology. It remains an irreplaceable standing on site gas supply field. Under adsorption balance condition, for any adsorbent, when adsorbs one sort of gas, the higher the air pressure is, the more quantity it can adsorb, vice versa. As mentioned above, when the air pressure is high, the carbon molecular sieve will adsorbs lots of oxygen, carbon dioxide and water. When the pressure is reduced to the atmospheric pressure, the adsorbing capacity of the carbon molecular sieve to oxygen, carbon dioxide and water will be small. The PSA equipment is composed of A and B two adsorption towers, which have installed the special carbon molecule sieve, and control system. When the cleaned compressed air enters tower A entrance and flows to the exit through the carbon molecular sieve (usually the pressure is 0.8MPa ), O2, CO2 and H2O were adsorbed by the carbon molecular sieve, while the nitrogen products flow out from the top of the adsorption tower. After a period of time, the carbon molecular sieve adsorption in tower A is saturated. This time, tower A will automatically stop adsorbing, the compressed air flows into tower B to carry out the oxygen adsorption and nitrogen production and then carry out the regeneration to the molecular sieve in tower A. The so-called regeneration is the process of discharging the gas of the adsorption tower to atmosphere to make the pressure reduced to the atmospheric pressure quickly, and then make the oxygen, carbon dioxide, and H2O adsorbed by the molecular sieve desorbed from the molecular sieve.

 The adsorption separation is accomplished in the following process steps:

 Stages of PSA technology


The ambient (inlet) air is compressed by an air compressor, subsequently dried by an air dryer and filtered before entering the process vessels.


The pre-treated air is passes into a vessel filled with Carbon Molecular Sieve (CMS) where the oxygen is adsorbed preferentially in the CMS pores so that nitrogen with an adjustable purity (down to a residual O2 content of 50 ppm) remains in the gas stream. Before the adsorption capacity of the CMS is fully utilized, the nitrogen separation process is interrupted, and the switching of the adsorber vessels is initiated.


The saturated CMS is regenerated (i.e. the adsorbed gases are released) by means of pressure reduction below that of the adsorption step. This is achieved by a simple pressure release system. The resultant waste stream is vented into atmosphere. The regenerated adsorbent can now be used again for the generation of nitrogen.


Adsorption and desorption take place alternately at equal time intervals. This means that the continuous generation of nitrogen can be achieved with two adsorbers, one being switched at adsorption and the other at regeneration. Constant product flow and purity is ensured by a connected product buffer vessel that stores the nitrogen at purities up to 99.9995% and pressures up to 7.5 bar (g) / 110 PSIG.


The result is a constant stream of on-site produced high purity nitrogen 

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