AV-PSA-C Industrial PSA Nitrogen Generator

Skid-Mounted Nitrogen Generation Plant · 500 – 10,000 Nm³/h · Purity up to 99.999%

The AV-PSA-C is a large-scale dual-tower Pressure Swing Adsorption (PSA) nitrogen generator engineered for continuous industrial duty. Using atmospheric air as raw material and high-selectivity carbon molecular sieves (CMS) as adsorbent, the plant separates oxygen and nitrogen by physics: two adsorption towers alternate between pressurized adsorption and depressurized desorption in a fully automatic cycle, delivering a continuous high-purity nitrogen supply without interruption.

The entire system is skid-mounted on a heavy steel frame with an integrated PLC intelligent control system — connect the air and power supplies and the plant is ready for production, cutting on-site installation time by up to 50%.

It is widely deployed in chemical, electronics, metallurgy, lithium battery, food & beverage and pharmaceutical industries, meeting all types of process demands for inert gas.

Key Advantages

• 24/7 Continuous SupplyA/B tower alternating cycle delivers nitrogen non-stop with zero switchover gap.
• Purity 95% – 99.999%High-selectivity CMS enables precise purity control; electronic grade up to 99.999%+.
• 15–25% Lower Energy Cost Built-in pressure equalization recovers high-pressure nitrogen energy inside the towers.
• Fully Automatic PLC Touchscreen HMI monitors flow, purity and pressure in real time; unattended operation.
• Multi-layer Safety Over-pressure, over load and CMS powdering alarms with automatic fault shutdown.
• Plug-and-Play Skid Integrated steel-frame skid shortens on-site installation time by 50%.
• Fully Customizable Flow 500–10,000 Nm³/h, purity, outlet pressure (up to 3.0 MPa) and dew point (≤ -70°C) tailored to your process.
• 8–10 Year CMS Life Stainless steel pneumatic valves and piping resist corrosion; maintenance is just filter cartridge replacement.
• Eco-Friendly Physical separation only — no chemical additives, zero pollutant emissions.

Product Features

Technical Specifications

System Structure

• Figure — Dual-tower PSA nitrogen generation process flow
• Stage 1 · Compressed Air Preparation
• Atmospheric air is compressed to 0.7–1.0 MPa, dehumidified in a refrigerated dryer, then passed through a 3-stage precision filter (oil & dust removal) before entering the air buffer tank for pressure stabilization.
• Stage 2 · Dual-Tower PSA Separation (Core Cycle)
• Clean compressed air enters tower A; CMS preferentially adsorbs oxygen, CO₂ and moisture while nitrogen is enriched at the top and delivered to the N₂ buffer tank. When adsorption completes, an equalization valve transfers high-pressure nitrogen from A to B to recover energy; tower A then depressurizes to atmospheric and the adsorbed impurities desorb and vent. Tower B takes over adsorption simultaneously — guaranteeing uninterrupted gas supply. An optional purge stage back-flushes the desorbing tower with product nitrogen for deeper regeneration.
• Stage 3 · Nitrogen Delivery & Quality Control
• Product nitrogen enters the N₂ buffer tank to stabilize pressure and flow; an optional purification unit raises purity above 99.999% and lowers dew point below -70°C. Flow meter and pressure gauge provide online monitoring before delivery to your process.

PSA nitrogen generator system flow diagram

Applications

• Chemical & petrochemical — inert blanketing, purging, vessel protection
• Electronics & semiconductor — high-purity N₂ for reflow, soldering and storage
• Metallurgy — annealing, quenching and protective atmospheres
• Lithium battery — dry-room protection, electrolyte filling environment
• Food & beverage — modified atmosphere packaging (MAP), oxygen-free storage
• Pharmaceutical — GMP inert blanketing and packaging
• 二级子分类:
• 2.Membrane Nitrogen Generators(膜分离制氮机)