AYAN AYAN-100LB High-Flow PSA Nitrogen Generator with 99.999% Purity

Overview

The AYAN AYAN-100LB is a turnkey, high-capacity Pressure Swing Adsorption (PSA) nitrogen generator engineered for continuous, on-site production of ultra-high-purity nitrogen gas (up to 99.999%) at flow rates up to 100 L/min. Unlike membrane-based or cryogenic alternatives, the AYAN-100LB leverages the selective adsorption kinetics of carbon molecular sieve (CMS) under controlled pressure cycles to separate nitrogen from compressed ambient air. During the high-pressure adsorption phase, oxygen, CO₂, water vapor, and trace hydrocarbons are preferentially retained by the CMS bed, while nitrogen—due to its larger kinetic diameter and lower affinity—passes through with minimal retention. The system operates in dual-tower configuration, enabling one tower to adsorb while the other undergoes depressurization and purging, ensuring uninterrupted nitrogen delivery. This architecture delivers stable output pressure (0–0.7 MPa), low pulsation, and long-term reproducibility—critical for analytical instrumentation requiring inert purge or carrier gas, such as GC, LC-MS, FTIR, and thermal analysis systems.

Key Features

• Integrated air compression and purification: Built-in oil-lubricated air compressor, refrigerated dryer, and multi-stage filtration (coalescing, activated carbon, and ultra-fine particulate filters) ensure inlet air meets ISO 8573-1 Class 2:2:2 requirements prior to CMS exposure.
• Proprietary micro-oil adsorption pre-filter: Specifically designed to remove residual compressor oil aerosols (<0.01 mg/m³) that could otherwise poison CMS performance and reduce service life.
• Real-time monitoring suite: Onboard electrochemical nitrogen purity analyzer (0–100% N₂, resolution 0.001%), thermal mass flow meter (0–100 L/min, ±1.5% FS accuracy), and digital pressure transducers provide continuous feedback via an industrial-grade HMI interface.
• Structural mobility and stability: Heavy-duty casters with locking brakes support safe repositioning within lab or pilot plant environments; reinforced steel frame accommodates floor-level installation without anchoring.
• Dynamic buffer management: Dual-stage buffering—air buffer tank stabilizes inlet pressure to CMS towers, reducing load fluctuations on upstream purification components; nitrogen buffer tank homogenizes output purity and pressure, minimizing downstream variability during transient demand.
• Scalable CMS configuration: Modular adsorption towers allow customization for target purity (99% to 99.9999%) and duty cycle—optimized per application-specific oxygen breakthrough tolerance and flow profile.

Sample Compatibility & Compliance

The AYAN-100LB is compatible with all standard laboratory gas interfaces (CGA-580, BS4365, DIN 477-1) and supports seamless integration into existing gas distribution networks. It meets mechanical safety requirements per GB/T 150.1–2011 (Chinese pressure vessel standards) and electromagnetic compatibility per GB/T 17626 series. While not certified to ISO 8573-7 for microbial content or USP for pharmaceutical-grade gases, its design enables validation pathways compliant with GLP, GMP, and ISO/IEC 17025 frameworks when paired with documented calibration, preventive maintenance, and audit-ready log files. Optional 21 CFR Part 11-compliant data logging modules are available for regulated QC/QA laboratories requiring electronic signature and audit trail functionality.

Software & Data Management

The embedded control system runs on a real-time Linux kernel with deterministic I/O response. All operational parameters—including tower cycle timing, pressure decay profiles, purity trends, and alarm history—are timestamped and stored locally on industrial-grade SD card (≥16 GB). Data export is supported via USB 2.0 or optional Ethernet (Modbus TCP/IP) for integration into LIMS or SCADA platforms. Remote diagnostics and firmware updates can be performed securely over TLS-encrypted connections. Historical logs include automatic event tagging for CMS regeneration cycles, filter replacement alerts, and deviation-triggered notifications—enabling predictive maintenance planning aligned with ISO 55001 asset management principles.

Applications

• Gas chromatography carrier and detector purge gas (compliant with ASTM D3612 and ISO 10302 for transformer oil DGA analysis)
• Inert atmosphere generation for glove boxes, sample preparation stations, and material synthesis reactors
• Blanketing and purging in pharmaceutical lyophilization, solvent evaporation, and API crystallization
• Calibration gas dilution systems requiring stable, oil-free background gas
• Electron microscopy sample chamber evacuation and beam path protection
• Quality control testing in food packaging (modified atmosphere packaging verification per ISO 8587)

FAQ

What is the minimum required inlet air quality for optimal CMS performance?

Compressed air must meet ISO 8573-1 Class 2:2:2 (solid particles ≤0.1 µm, dew point ≤−40 °C, oil content ≤0.1 mg/m³) to prevent irreversible CMS fouling.
Can the AYAN-100LB be configured for 99.9999% nitrogen purity?

Yes—through cascaded PSA stages or integrated palladium membrane polishing; consult engineering team for system layout and footprint implications.
Is external cooling water required?

No—the refrigerated dryer uses air-cooled condenser technology; ambient airflow clearance ≥50 cm on all sides is mandatory.
How often does the carbon molecular sieve require replacement?

Under validated operating conditions and proper upstream filtration, CMS service life exceeds 8 years (≥60,000 hours) with annual performance verification recommended.
Does the unit support 24/7 unattended operation?

Yes—equipped with redundant safety interlocks, automatic shutdown on overpressure/overtemperature, and configurable email/SMS alerting via optional IoT gateway.