PSA Nitrogen Generation Equipment
Product Overview
PSA Nitrogen Generation Equipment is engineered for continuous, on-site high-purity nitrogen production. Designed with premium Carbon Molecular Sieve (CMS) adsorbents, the system converts ambient compressed air into nitrogen with purities up to 99.9995%, eliminating liquid nitrogen refills.
Parameter
|
Model |
gas production (Nm³/h) |
Raw gas pressure (MPa) |
Atmospheric dew point of raw material gas (℃) |
Nitrogen residual oil content (ppm) |
Nitrogen dew point at normal pressure (℃) |
Nitrogen purity (%) |
Nitrogen pressure (MPa) |
Nitrogen temperature |
|
PSA-98 |
1-5000 |
0.7-1.0 |
≤ -17 |
≤0.003 |
≤-40 ≤-60 |
≥98 |
0.6-0.9 |
Ambient temperature |
|
PSA-29 |
1-5000 |
0.7-1.0 |
≤ -17 |
≤0.003 |
≤-40 ≤-60 |
≥99 |
0.6-0.9 |
Ambient temperature |
|
PSA-295 |
1-5000 |
0.7-1.0 |
≤ -17 |
≤0.003 |
≤-40 ≤-60 |
≥99.5 |
0.6-0.9 |
Ambient temperature |
|
PSA-39 |
1-5000 |
0.7-1.0 |
≤ -17 |
≤0.003 |
≤-40 ≤-60 |
≥99.9 |
0.6-0.9 |
Ambient temperature |
|
PSA-49 |
1-5000 |
0.7-1.0 |
≤ -17 |
≤0.003 |
≤-40 ≤-60 |
≥99.99 |
0.6-0.9 |
Ambient temperature |
|
PSA-59 |
1-5000 |
0.7-1.0 |
≤ -17 |
≤0.003 |
≤-40 ≤-60 |
≥99.999 |
0.6-0.9 |
Ambient temperature |
Key Engineering Features
High-Efficiency Energy Ratio Optimized pressure equalization logic and dynamic regeneration cycles lower compressed air consumption, reducing overall power requirements compared to industry baselines.
Rapid Purge & Instant Start Reaches target purity within 15–30 minutes from start-up through fully automated PLC valve sequencing, switching smoothly into continuous production.
Structural & Valve Durability Equipped with high-cycle pneumatic angle seat valves rated for over 3 million switching operations to ensure minimal pressure drop and extended service intervals.
Automated Safeguards & Diagnostics Integrated Siemens/Schneider PLC with touchscreen HMI monitors purity, flow, and pressure in real time. Off-spec nitrogen is automatically vented to prevent downstream contamination.
Industry Applications
Laser Cutting & Metal Fabrication: High-pressure (2.0–3.0 MPa), oxide-free edge cutting for stainless steel, aluminum, and carbon steel.
Electronics & SMT Assembly: Inert shielding gas (Purity equal to or greater than 99.99%) preventing joint oxidation during wave soldering and reflow processes.
Food & Beverage Packaging: Modified Atmosphere Packaging (MAP) and wine/oil purging (Purity 99.5%–99.9%) to extend shelf life.
Chemical & Pharmaceutical: Blanket gas, reactor purging, and pneumatic conveying for combustible or moisture-sensitive compounds.
Oil & Gas / Energy: Pipeline purging, tank inerting, and offshore platform well-head pressure maintenance.
Flexible System Integration & Options
Air Treatment Package: Integrated refrigerated/desiccant air dryer, multi-stage oil removal filters, and active carbon towers.
Pressure Boosting: High-pressure nitrogen boosters for laser cutting or cylinder filling (150–300 bar).
Skid-Mounted or Containerized: Plug-and-play ISO containerized systems designed for harsh ambient environments or outdoor installation.
Global Compliance: Motors, electrical panels, and pressure vessels compliant with CE, ASME, PED, or ATEX standards upon request.
Quality Assurance
CMS Filling Verification: Snow-storm filling technology ensures maximum molecular sieve density, preventing fluidization and pulverization.
Pressure Vessel Certification: All towers undergo 100% non-destructive testing (NDT) and hydro-testing prior to assembly.
Helium Leak Detection: Complete pipeline assembly subjected to high-precision pressure decay and leak testing.
72-Hour Factory Acceptance Test (FAT): Every unit undergoes continuous full-load testing to verify purity, flow, and PLC automation before export.
Packaging & International Logistics
Export-Grade Protection: Heavy-duty, ISPM-15 compliant heat-treated fumigation-free wooden cases or reinforced steel frame structures.
Environmental Shielding: Sealed VCI anti-corrosion barrier film and desiccants applied to absorb internal air moisture during maritime transit.
Structural Rigging Points: Pre-designed lifting lugs and forklift entry slots for safe, balanced handling during loading, unloading, and site positioning.
Shipping Configurations: Fits standard 20ft/40ft HQ dry containers; larger modular skids shipped via Open Top (OT) or Flat Rack (FR) containers.
Documentation Included: Physical package includes Packing List, Certificate of Analysis (COA), Hydro-test Reports, and Operation Manuals.
FAQ
Q: What raw air quality is required at the inlet of the PSA system?
A: The inlet compressed air must be free of liquid water, oil, and dust. We mandate an inlet pressure dew point below +3°C (preferably -20°C to -40°C) and remaining oil content below 0.003 mg/m³ to protect the Carbon Molecular Sieve from permanent contamination.
Q: How does on-site PSA nitrogen generation compare to liquid nitrogen supply in terms of ROI?
A: On-site PSA generation typically reduces nitrogen costs by 50% to 80% compared to delivered liquid or bottled nitrogen. Most industrial users reach full return on investment (ROI) within 8 to 18 months depending on local electricity rates and usage volume.
Q: How long does the Carbon Molecular Sieve (CMS) last, and how can we prevent its degradation?
A: With proper compressed air pretreatment (dry and oil-free air), the CMS maintains high working efficiency for 6 to 8 years. Proper air filter maintenance is the primary factor in protecting CMS longevity.
Q: What happens if the generated nitrogen purity drops below our required threshold?
A: The PLC system continuously monitors purity via an inline zirconia or electrochemical oxygen analyzer. If purity falls below your setpoint, an alarm triggers and the system automatically diverts the off-spec gas to the vent port until target purity is restored.
Q: Can the unit adjust nitrogen output automatically if our plant demand fluctuates?
A: Yes. Optional energy-saving capacity control systems allow the generator to enter standby mode or adjust cycle times automatically when downstream storage pressure reaches set limits, minimizing idle power consumption.
Q: What main maintenance routine is required and at what intervals?
A: Daily operations require zero manual intervention. Scheduled maintenance involves replacing air filter elements every 2,000–4,000 hours, checking pneumatic valve seals annually, and recalibrating the oxygen sensor every 12 months.
Q: Do you provide support for overseas commissioning and installation?
A: Yes. We provide complete layout drawings, piping diagrams, and video guidance. Online remote commissioning support is included, and on-site engineering support is available globally upon request.
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