Nitrogen Generator NIMOS
The new Nimos generatos can be seen as an evolution of traditional systems using the PSA principle (Pressure Swing Adsorption) which allows a constant production of Nitrogen from compressed air.
NIMOS generators are made of two or more modules with two columns. Each one is filled with high quality molecular sieves, characterized by a high porosity and therefore by an excellent selectivity.
The compressed air, which has been dried and filtered, will pass through one of the two columns ceding other gasses and water vapor to the oxygen sieves. After few seconds, before the sieves are completely saturated, the column will be depressurized in order to release the oxygen into the atmosphere.
At the same time, compressed air will be deflected to the other column, yielding oxygen until the next change.
The cycle, uninterrupted until reaching the filling of the tank, ensures a continuous nitrogen flow. When the tank reaches its maximum filling pressure, the generator, automatically, turns itself off, in standby mode, waiting for a new gas demand.
Oxygen molecules are very small (0,28 mm), and often remain trapped in the cavities characterizing the surface of molecular sieves.
Nitrogen molecules instead, are larger (0,32 mm), and are not captured by the sieve's prorosity.
Food & beverages industry
Main applications:
- MAP Packaging for meats, cheeses, baked goods, fresh pasta, IV Range products
- Sparging, blanketing, bottling of wine and oil, liquid ingredients, grains and powders
Nitrogen in Oenology
A SHIELD AGAINST OXIDATION
In winemaking, the technique of inert wine storage tanks rapidly spread, in order to reduce the amount of oxygen in contact with the product, by injecting gaseous nitrogen. Nitrogen is mostly used in winemaking to prevent wine oxidising, which is a cause of a deterioration of quality, involving changes in colour, aroma and flavour.
THE IMPORTANCE AND ADVANTAGE OF HAVING AVAILABLE ON-SITE generated nitrogen
In cellars, the approach to the use of on-site produced nitrogen happened gradually, to satisfy the increasing demand from innovations with gas injection at bottling. World-wide there is rapid movement towards nitrogen generators replacing the traditional nitrogen production systems, such as bottles or liquid gas, due to the advantages derived from the convenience and cheapness of this system. The key of the success of the nitrogen generator is that by simply switching on the machine, all nitrogen needed can be produced on site, in complete safety, at the desired purity and definitely at lower cost compared to other supply systems.