Short answer: An oxygen generator adsorbs nitrogen from atmospheric air on zeolite molecular sieve and continuously produces oxygen-rich gas at the point of use. Mentis engineers the PSA unit together with compression, air treatment, storage, analysis, booster and backup supply.
Oxygen is a critical input for healthcare, aquaculture, environmental technology and process industries. Delivery schedules, stock, rental, evaporation losses and transport distance can materially increase the total cost of cylinders and liquid oxygen.
On-site generation produces oxygen automatically where it is consumed. With correctly sized storage and backup, it reduces dependence on external deliveries and makes unit-gas cost easier to monitor.
In a PSA oxygen generator, zeolite preferentially adsorbs nitrogen from compressed air. Mentis patented Serial PSA architecture adds an integrated drying and filtration stage with activated alumina and activated carbon upstream of the main vessels to protect the zeolite from moisture, oil vapor and contaminants.
Depending on design and operating conditions, this architecture can provide up to 15% lower compressed-air consumption than separate desiccant-dryer arrangements using external purge air. Purity, flow and energy performance are verified against pressure, temperature, altitude and duty cycle.
“A critical oxygen project must be designed around peak demand, storage, analysis, alarms, redundancy and emergency supply—not generator capacity alone.” — Mentis Engineering
Depending on configuration, Mentis PSA oxygen generators cover the typical 90-95% range and specialized solutions up to 99.5%. A common medical target is 95% ±1; final gas quality, certification, alarms, filtration and backup requirements must be validated against local regulations and project specifications.
• Hospitals and health centers: On-site generation and backup for central medical-gas systems.
• Aquaculture: Support for dissolved oxygen and production capacity.
• Wastewater and ozone: Enhanced biological treatment and oxidation efficiency.
• Gold leaching and mining: Support for reaction kinetics and process performance.
• Glass, ceramics, metals, paper, chemicals and pharmaceuticals: Combustion, oxidation and process oxygen.
Hourly and daily consumption, peaks, pressure, storage duration, altitude, temperature, inlet-air quality, N+1 redundancy and maintenance scenarios are reviewed together. Oil-free oxygen boosters and suitable safety infrastructure are included for high-pressure filling or processes.
Mentis can calculate lifecycle cost and payback using external oxygen price, electricity, maintenance, operating hours, liquid losses and logistics. Technical continuity and financial outcome are therefore evaluated in one decision model.
Since 2007, Mentis Engineering has transferred experience from more than 500 projects across six continents to medical and industrial oxygen systems. Engineering, manufacturing, installation, commissioning, remote support and 24/7 service are organized to sustain performance throughout operation.
Share your oxygen consumption, purity and pressure with Mentis to receive PSA capacity selection, a redundancy plan and an ROI study.
