By If You are currently Applying nitrogen for tank blanketing, drying, product transport, purging, flushing, inerting, you then need to have a look at your plant is compressed air source for a source to make your own onsite nitrogen. This is a straightforward and reliable way that may save you money and give you more control over your nitrogen gas usage. Companies that create their own supply of onsite nitrogen can create as much or as little nitrogen as they need, in a fraction of the cost of getting the gas delivered by an outside source.
Overall, there are two Ways to produce on-site nitrogen. There’s membrane filtration and PSA (Pressure Swing Adsorption) technology. Flow rates and purity will determine which technology is best suited for the application.
The first type of onsite nitrogen is Membrane Technology. Membrane nitrogen generators are generally utilized in applications where the purity requirement is under 99.5percent (0.5% O2 or greater). Membrane Technology operates by filtering oxygen in the dry compressed air flow via hundreds of thousands of hollow, polymeric fibers each the diameter of a human hair to generate gaseous nitrogen. The purity of the nitrogen can be adjusted by regulating the volume of air passed through the membrane. Membrane modules could be added as necessary, so it is easy to expand as demands change.
Applications that are Best suited to onsite nitrogen of the membrane filtration variety include: snack food packaging, laser cutting with nitrogen, tank blanketing, tire filling, rapid prototyping, RIM (Reaction Injection Molding), Injection Molding, fruit storage, power stations, dry box storage of built electronic components, mine fires, fire sprinkler systems, and beer dispensing.
1 such on-site Nitrogen membrane generator is your PMNGE Series nitrogen generators. PMNG membrane nitrogen generators utilize patented membrane filtration to produce an uninterrupted supply of gaseous onsite nitrogen. This desiccant pouch streamlined system is ideally suited to low-flow applications that currently employ high-pressure gas cylinders or dewars of nitrogen.
The second type of Onsite nitrogen is PSA (Pressure Swing Adsorption) Technology. PSA nitrogen generators are generally utilized in applications where the purity requirement is greater than 99.5percent. PSA technology uses two towers which are full of carbon molecular sieve (CMS). Compressed air enters the bottom of this online tower and flows through the CMS. Oxygen and other trace gases are preferentially adsorbed by the CMS, allowing nitrogen to pass through. Following a pre-set time the online tower automatically switches into the regenerative manner, venting contaminants in the CMS. Carbon molecular sieve is different from ordinary activated carbons as it has a much wider range of pore openings.