1. The nitrogen purity can be adjusted from 95%-99.99%. The
nitrogen gas is dry and its dew point is low, these help to
preserve the food.
2. The machine features excellent cost effectiveness and fast
3. Its exterior is concise and small, so is to be conveniently
cleaned and meet the high cleanliness requirement of the food
4. The product is made of high quality equipments and its
skillfully process makes itself durable in use.
Under the balance of adsorption, when any kind of adsorbent adsorbs
the same gas, the higher the gas pressure, the greater the
adsorption capacity is. Otherwise, the lower the pressure, the
smaller the adsorption power is.
As the chart shows, carbon molecular sieve shows difference in
adsorbing oxygen and nitrogen. Carbon molecular sieve is a
substance with a lot of micropores inside. The PSA principal is to
achieve the separation goal of oxygen and nitrogen which based on
the adsorption quantity difference in the carbon molecular sieve
when the pressure is certain.
When the pressure rises, the carbon molecular sieve adsorbs the
oxygen and produces the nitrogen gas. When the pressure decreases,
the carbon molecular sieve starts to desorb the oxygen until the
pressure equals to the ordinary pressure. At that time, the carbon
molecular sieve desorbs the oxygen completely. The PSA nitrogen
generator is usually equipped with adsorption towers. It controls
the pneumatic valve by PLC, thus the two adsorption towers can
produce the nitrogen gas alternatively. One tower adsorbs the
oxygen and produces nitrogen gas, the other desorbs to regeneration
to produces the required nitrogen.
This standard suitable for normal temperature adopt CMS PSA
method,separate oxygen or nitrogen from air,oxygen output not more
than 15000 m3/h,nitrogen output not more than 5000 m3/h equipment .
Remark1: Under this standard oxygen and nitrogen output is normal
standard,that is mean gas flow under 0℃,0.101325Mpa(absolute
pressure) standard unit(m3)