PSA (Pressure Swing Adsorption)
Nitrogen molecules are separated from the other gas molecules by the carbon molecular sieves (CMS). Alternating between both CMS columns. First O2, moisture, hydrocarbons, CO2, and other “contaminants” are absorbed, allowing the Nitrogen to flow into an accumulation tank. From the accumulation tank the Nitrogen is pressurized and delivered to the generator outlet for use.
Air separation using Membrane Technology occurs when compressed air is forced into a vessel containing a hollow tube in the middle surrounded by a polymeric hollow fiber. These hollow fibers selectively permeate O2, water vapor, and other impurities out of its side walls, allowing Nitrogen to flow through its center and emerge as product.