Nitrogen Generators take a stream of compressed air and discards the oxygen leaving you with a high concentration of Nitrogen for your manufacturing process. Nitrogen is essential to countless industries from food storage to metal production & fabrication, pharmaceuticals manufacturing to petroleum refining. Generating your own nitrogen can substantially reduce the cost of nitrogen consumption, and is the primary reason for the purchase of most Nitrogen Generators systems.
The price of purchasing nitrogen in a gaseous or liquid form can vary from $2.88 to $0.35 per 100 ft3. The price range can be a result of volume consumption, type of product, location, or vendor. This cost is strictly for the gas or liquid delivered and does not factor additional supply costs such as:
- Delivery Costs
- Monthly Cylinder / Tank Rental Fees
- Bulk Evaporative Loss
- Handling and Purchasing Labor Costs
- Additional Site Liability Insurance
A PSA Nitrogen Generators will produce gaseous nitrogen at costs that ranges from $0.061 to $0.217 per 100 ft3. The price range is a result of local power costs, compressor efficiencies, and required nitrogen purity. The (ROI) return on investment for one of our Nitrogen Generators is usually between 6 to 18 months. This rapid return enhances the financially attractive position of a PSA system above and beyond the 75% to 92% base reduction in nitrogen cost.
How is Nitrogen Generated?
The earth’s atmosphere is comprised of approximately 78% nitrogen and 21% oxygen. Once atmospheric air is compressed, its pressure is increased while proportions of nitrogen and oxygen remain unchanged. The compressed air is filtered and dried then introduced to the PSA nitrogen generator. As the air flows through a bed of CMS (Carbon Molecular Sieve) oxygen molecules are selectively adsorbed into the CMS allowing the larger Nitrogen molecules to pass. With the oxygen molecules trapped in the CMS bed a high purity stream of nitrogen is discharged from the PSA nitrogen generator. When one bed has reached it’s adsorption capacity the towers invert and a regenerated bed continues adsorbing oxygen while the other tower begins a regeneration process. This cyclic action continues allowing the GN2 to produce a steady stream of high purity nitrogen gas.
