Anyan AYAN-10L Membrane-Based Laboratory Nitrogen Generator

Overview

The Anyan AYAN-10L is a compact, self-contained membrane-based nitrogen generator engineered for continuous, on-demand nitrogen supply in analytical laboratories, QC environments, and research settings. It employs hollow-fiber polymeric membrane separation technology—where compressed air is passed across asymmetric membranes that selectively permeate oxygen, water vapor, and CO₂ faster than nitrogen—yielding a purified nitrogen stream with consistent composition and stable pressure output. Unlike pressure swing adsorption (PSA) systems, the AYAN-10L operates without molecular sieves or cyclic regeneration, eliminating consumables, valve wear, and purity drift over time. Its design targets applications requiring moderate flow (up to 10 L/min), high operational reliability, and minimal maintenance—particularly where ambient air quality, space constraints, and acoustic performance are critical factors.

Key Features

• Imported Korean high-selectivity hollow-fiber membrane modules ensure long service life (>15,000 operating hours) and stable nitrogen purity between 99% and 99.9%, verified by built-in electrochemical oxygen sensor and real-time digital display.
• Integrated multi-stage air purification system comprising coalescing pre-filter, activated carbon adsorber, and desiccant-based moisture removal—each stage equipped with visual service-life indicators and audible/visual alerts upon filter saturation.
• Onboard oil-free scroll air compressor with vibration-damping suspension mount reduces operational noise to ≤52 dB(A) at 1 m distance, suitable for shared lab spaces and adjacent instrumentation rooms.
• Dual independent pressure regulation: primary regulator controls feed air pressure to the membrane stack; secondary regulator fine-tunes outlet nitrogen pressure (0–0.6 MPa) for compatibility with GC carrier gas, LC-MS purge lines, or inert atmosphere gloveboxes.
• Modular monoblock architecture integrates air compression, drying, filtration, membrane separation, and buffer storage into a single footprint (W×D×H: 580 × 520 × 820 mm), minimizing floor space and interconnection complexity.
• Intelligent control panel with self-diagnostic firmware monitors inlet pressure, membrane temperature, dew point stability, and compressor thermal load—logging fault codes and prompting scheduled maintenance via LED interface.
• ASME-certified stainless steel buffer tank (3 L capacity) with TÜV-approved safety relief valve (set at 0.8 MPa) ensures pressure stabilization and compliance with local mechanical equipment regulations.

Sample Compatibility & Compliance

The AYAN-10L delivers nitrogen meeting ASTM D6633–22 specifications for “Nitrogen for Use in Gas Chromatography” when operated within specified ambient conditions (15–30 °C, <70% RH). Its -40 °C pressure dew point satisfies ISO 8573-1:2010 Class 2.2.1 requirements for compressed gas quality in analytical instrumentation. The unit conforms to IEC 61000-6-3 (EMC emissions) and IEC 61000-6-2 (immunity), and includes CE marking per Machinery Directive 2006/42/EC and Low Voltage Directive 2014/35/EU. While not FDA 21 CFR Part 11–compliant out-of-the-box, audit-ready operation logs (timestamped purity, pressure, runtime) can be exported via USB for GLP/GMP documentation workflows.

Software & Data Management

The AYAN-10L operates via embedded microcontroller firmware—no external PC or proprietary software required. All operational parameters (purity %N₂, outlet pressure, dew point, cumulative runtime) are displayed on a backlit LCD with configurable units and alarm thresholds. Event history—including filter replacement prompts, overtemperature events, and pressure deviation warnings—is stored in non-volatile memory for up to 12 months. Optional RS-485 Modbus RTU interface (available upon request) enables integration into centralized lab infrastructure monitoring platforms for remote status polling and predictive maintenance scheduling.

Applications

• Gas chromatography (GC) carrier and detector gases, including split/splitless injection and FID/TCD operation.
• LC-MS solvent purge and instrument enclosure blanketing to prevent oxidation of sensitive samples.
• Nitrogen sparging in sample preparation workflows (e.g., evaporation, derivatization, headspace analysis).
• Inert atmosphere maintenance for gloveboxes, reaction vessels, and material storage cabinets.
• Calibration gas dilution systems requiring stable, low-moisture nitrogen base gas.
• Quality control labs performing ASTM D6300, USP , or ISO 17025–accredited testing where traceable, on-site nitrogen generation eliminates cylinder logistics and contamination risks.

FAQ

What is the expected lifetime of the membrane module?

Under continuous operation at rated flow and ambient conditions ≤30 °C / 70% RH, the Korean-sourced membrane stack maintains ≥99% purity for ≥15,000 hours. Performance verification is recommended annually using calibrated oxygen analyzer.

Can the unit operate unattended for extended periods?

Yes—the AYAN-10L supports 24/7 operation with automatic thermal shutdown, pressure relief, and filter saturation alerts. It is routinely deployed in automated analytical labs with weekly visual inspection intervals.

Is external cooling or ventilation required?

No dedicated exhaust ducting is needed. Maintain ≥150 mm clearance around rear and top vents; ambient airflow must exceed 0.5 m/s to ensure compressor and membrane stack thermal management.

How does ambient humidity affect nitrogen purity?

Inlet air dew point >10 °C may reduce achievable purity by ~0.1–0.3%. For consistent 99.9% output in humid climates, optional refrigerated air dryer integration is available.

Does the generator meet ISO 8573-1 Class 2 requirements for particle/oil/water content?

Yes—when equipped with factory-installed coalescing + activated carbon + desiccant filtration, the unit meets ISO 8573-1:2010 Class 2.2.1 for particles, Class 1.2.1 for oil aerosols, and Class 2.2.1 for water (dew point –40 °C).