Sam Gas Projects Pvt. Ltd.

The MS model of Nitrogen Plant operating on PSA technology, consists of twin tower system filled with special grade of carbon molecular sieves (C.M.S.) at a time, one tower keeps in production cycle and other in regeneration cycle.

It is used to produce nitrogen of a purity in range from 95% to 99% purity. However, if carbon molecular sieves quantity is increased, even 99.999% purity nitrogen can be produced from this model. But running cost would be higher in case of higher purity. Thus, this model is recommended for purity up to 99.9% only. This model is generally used to purging or Inertizing applications.

The DX Model is commonly used in metallurgical industries for providing oxygen free nitrogen for heat treatment furnaces. Here, the oxygen is less than 1-ppm and but hydrogen is around 0.5 to 1% which is desirable as reducing constituent in most of heat treatment applications.

The commercial nitrogen production process usually employs carbon molecular sieves as adsorbents, whereas in PSA DX Gas Generator is adsorbed to its equilibrium value much faster than nitrogen. This is possible because oxygen, which is smaller in size (kinetic diameter 3. 46 a.o) diffuses much faster in carbon molecular sieves than nitrogen (kinetic diameter 3. 64 a.o). Thus, these are used as inert gas in chemical & pharmaceutical industries.

This "MS" models can also be converted into “DX” model by adding palladium deoxo reactor and Gas Drying Unit. The “DX” model is also applicable in chemical as well electronic industries.

CU-DX Model PSA Nitrogen Gas Generator contains an extra nitrogen purification module based on copper deoxo catalyst. This model finds application in synthetic fiber, optical cables & electronic industries. Running cost of this unit is slightly higher because it produces very pure nitrogen gas i.e free from oxygen and hydrogen as well. It is applicable where hydrogen contents are detrimental to the process.

Applications :

• PSA Nitrogen Gas Generator (CU-DX Model) is widely used in Electronic, Synthetic Fiber and Hi-tech Industries where one needs Ultra High Purity.