OVERVIEW OF BAUER NPX™ NITROGEN SYSTEMS
WHY BUY NITROGEN WHEN YOU CAN MAKE YOUR OWN?
The BAUER Nitrogen Generators are self-contained, fully integrated, modular systems that eliminate the hazards involved with the handling of high-pressure cylinders, as well as the burden of the merchant, supplied nitrogen gas. BAUER PSA nitrogen generator systems are designed for the on-demand supply of nitrogen gas at purities up to 99.999%.
Generating nitrogen to meet customer required purity and quality is a critical process. BAUER PSA nitrogen generation systems require exact control of feed-air-flow, pressure, temperature, and quality (oil content, moisture content and particulate content), which BAUER provides in its systems.
All BAUER nitrogen systems are engineered to provide years of reliable performance. Critical performance values such as pressure, temperature and O2 content are electronically monitored after each critical process step in order to assure optimal long–term total system performance. BAUER NPX™ nitrogen systems adapt automatically to changing environmental conditions, as well as, changes in PSA systems as they age.
BAUER GUARANTEES SYSTEM PERFORMANCE OVER TIME
- Process performance monitoring after each critical step to assure nitrogen quality and purity
- Adaptive system that automatically adjusts to various ambient conditions, as well as, PSA aging
- Remote telemetry to provide real-time feedback of system performance
Most of the nitrogen used in industrial applications is generated by separating the nitrogen from the oxygen present in ambient air. The two most common separation technologies for nitrogen are membrane and pressure swing adsorption (PSA).
The benefit of these technologies is that nitrogen can be produced anywhere at any time.
PSA METHOD OF NITROGEN GENERATION (FOR NITROGEN PURITIES FROM 99.9-99.999%)
Pressure swing adsorption (PSA) is a technology used to separate some gas species from a mixture of gases under pressure according to the species’ molecular characteristics and affinity for an adsorbent material. It operates at near-ambient temperatures and differs significantly from cryogenic distillation techniques of gas separation. Specific adsorbent materials are used as a trap, preferentially adsorbing the target gas species at high pressure. The process then swings to low pressure to desorb the adsorbed material.
MEMBRANE METHOD OF NITROGEN GENERATION (FOR NITROGEN PURITIES FROM 95.0-99.5%)
Incoming air is separated inside the membrane using tens of thousands of hollow fibers, each of which is sized to capture N2 molecules. The remaining components (mostly water vapor and oxygen) that make up ambient air are vented away from the membrane inlet before the nitrogen is delivered to the membrane outlet.
Membrane generation systems usually require less space than PSA generation systems, but are limited to 99.5% N2 purity. PSA systems are therefore highly suitable for applications requiring >99.5% N2 purity with the ability to provide Nitrogen purities up to 99.999%.