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.