Nitrogen Generation

Nitrogen generators extract the available nitrogen in the ambient air from the other gases by applying the Pressure Swing Adsorption (PSA) technology. The first step in the PSA process is compressed air passing through a combination of filters and an activated carbon tower with the purpose of removing dust, entrained oil and water. The purified air is then directed to one of two adsorption vessels that are packed with carbon molecular sieves (CMS). The remaining impurities such as carbon dioxide and residual moisture are adsorbed by the CMS at the entrance of the adsorbent bed

Activated Carbon

activated carbon is used in a wide range of industrial applications, including gas and air cleaning involving traditional reusable substance recovery applications. Activated carbon is also being used to an increasing extent in the treatment of water, including drinking water, groundwater, service water, and wastewater. Its primary role in this context is to adsorb dissolved organic impurities and to eliminate substances affecting odor, taste, and color in halogenated hydrocarbons and other organic pollutants

Carbon Molecular Sieve

CMS is a mainstream adsorbent for Pressure Swing Adsorption (PSA) system Nitrogen gas generator. There is a differential diffusion rate system based on the fact that the oxygen molecule is smaller than the nitrogen molecule.

CMS adsorbs oxygen gas, carbon dioxide gas, moisture and so on in compressed air in a short period of time and compressed nitrogen gas is available at the outlet. When the pressure decreases to the atmospheric or vacuum level, CMS which has adsorbed oxygen gas and others easily desorbs them and is regenerated.

When the above two operations are done alternately between
two adsorption columns, nitrogen gas can be available continuously from the air.