Molecular sieve

The compressed air generated by the air compressor, after undergoing purification treatments such as water removal, dust removal, and oil removal, enters the two adsorption towers of the nitrogen generation main unit. The adsorption towers are filled with carbon molecular sieves. The carbon molecular sieves adsorb oxygen molecules, while they adsorb very little nitrogen molecules. In this way, most of the nitrogen molecules can smoothly pass through the gas distribution system and enter the nitrogen buffer tank for collection and utilization. The two towers of the nitrogen generation main unit work alternately and can operate unattended.

Compared with traditional nitrogen production methods, the PSA nitrogen production system has the characteristics of simple equipment composition, fast gas production speed, light weight, small size, unattended operation, convenient operation and maintenance, and low nitrogen production cost, so it is widely used. At the same time, optional items such as liquid crystal touch screens, cabinet structures, linkage designs, and remote transmission functions can meet higher requirements for the PSA nitrogen production system.

Carbon molecular sieves can adsorb both oxygen and nitrogen in the air simultaneously, and their adsorption capacity also increases with the increase of pressure. Moreover, there is no obvious difference in the equilibrium adsorption capacity of oxygen and nitrogen at the same pressure. Therefore, it is very difficult to effectively separate oxygen and nitrogen only by changes in pressure.