Short answer: A nitrogen generator automatically separates oxygen from atmospheric air to produce a continuous nitrogen supply inside the facility. Mentis PSA solutions treat the generator, compressor, air treatment, storage, analysis and optional booster as one engineered package.
Price volatility, delivery scheduling, rental charges, stock management and supply risk can materially affect the true cost of cylinders, bundles and liquid nitrogen. On-site generation allows a facility to produce only the gas it needs, monitor consumption and make the unit cost more predictable.
Mentis Engineering addresses this requirement with a system approach that evaluates compressed-air generation, filtration, drying, CMS adsorption, product-gas analysis, storage and high-pressure demand together, rather than treating the PSA nitrogen generator as an isolated machine.
Mentis patented Serial PSA (S-PSA) design places an integrated chemical drying and filtration stage containing activated alumina and activated carbon upstream of the main PSA vessels. This protective barrier helps the moisture-, oil-vapor- and contaminant-sensitive Carbon Molecular Sieve operate under more stable conditions.
Depending on project and operating conditions, the S-PSA architecture can provide up to 15% lower compressed-air consumption than layouts using a separate desiccant dryer with external purge air. Final energy performance depends on purity, flow, inlet pressure, ambient temperature, altitude and the operating profile.
“The right nitrogen generator is not merely a machine that reaches a purity target. It is a complete system engineered for stable gas quality and the lowest practical lifecycle cost under the site's real operating conditions.” — Mentis Engineering
Mentis PSA nitrogen generators can be engineered for nitrogen purities from 95% to 99.9995% and capacities from 1 to 2,000 Nm³/h, depending on the application. Integrated analysis continuously monitors the product gas, while PLC/HMI automation supports cycle, valve sequence, pressure, alarm and purity management.
• Laser cutting and metalworking: Clean cut surfaces, oxidation control and high-pressure assist gas.
• Food and beverage: Modified-atmosphere packaging, tank blanketing and oxidation control.
• Chemical and petrochemical: Inerting, purging, blanketing and process safety.
• Electronics: Controlled inert atmospheres for reflow and wave soldering.
• Pharmaceuticals, heat treatment, cable and plastics: Protection of oxygen- and moisture-sensitive processes.
Average flow alone is not sufficient for correct selection. Peak demand, pressure, shift pattern, purity tolerance, air quality, redundancy and storage must be reviewed together. Applications requiring 40-220 bar, such as laser cutting, may also need an oil-free booster and high-pressure storage.
Before investment, Mentis can prepare lifecycle-cost and ROI calculations using current nitrogen expenditure, electricity, annual operating hours, maintenance, logistics and liquid-gas losses. The decision can therefore be based on long-term operating economics, not purchase price alone.
Based in Konya, Türkiye, Mentis Engineering brings the field experience of more than 500 successful projects across six continents since 2007 to each new nitrogen system. Engineering, manufacturing, commissioning, remote support and 24/7 service are structured to sustain traceable performance throughout the operating life.
Share your nitrogen flow, purity, pressure and operating hours with Mentis to receive an application-specific PSA configuration and return-on-investment study.
