ANYAN AYAN-500ML High-Purity Nitrogen Generator

Overview

The ANYAN AYAN-500ML High-Purity Nitrogen Generator is an engineered membrane-based gas separation system designed for continuous, on-demand supply of ultra-high-purity nitrogen in laboratory and light industrial settings. Unlike pressure swing adsorption (PSA) systems that rely on carbon molecular sieves, this generator utilizes asymmetric polymeric hollow-fiber membranes to selectively permeate oxygen, water vapor, CO₂, and other trace gases—leaving behind nitrogen with purity exceeding 99.999% (≤5 ppm O₂). The membrane separation process operates without moving parts, regeneration cycles, or consumable adsorbents, delivering inherently stable output pressure and composition under steady feed conditions. It is particularly suited for applications requiring inert blanketing, GC carrier gas, LC-MS purge gas, sample preparation atmospheres, and controlled-environment packaging where consistent purity, low maintenance, and compact footprint are critical.

Key Features

• Ultra-High Purity Output: Delivers nitrogen with purity >99.999% (O₂ ≤5 ppm), validated per ISO 8573-1:2010 Class 2.2.1 for gaseous contaminants and dew point ≤−40 °C at 0.4 MPa.
• Membrane-Based Architecture: Eliminates reliance on carbon molecular sieves, avoiding issues related to oil/water poisoning, sieve degradation, or scheduled replacement—reducing total cost of ownership and operational downtime.
• Precision Pressure Regulation: Integrated pressure control maintains output stability within ±0.2% full scale across the 0–0.4 MPa range, compatible with sensitive analytical instruments requiring constant backpressure.
• Low-Energy Operation: Rated at only 150 W maximum power draw; optimized thermal management enables silent, unattended 24/7 operation without forced cooling.
• Integrated Deionized Water Management: Built-in 1.2 L reservoir with resistivity-specified feed water requirement (≥1 MΩ·cm) ensures consistent membrane performance and prevents scaling or hydrolytic degradation.
• Modular Interface Design: Standardized 3 mm OD compression fitting or 1/8″ NPT (M8×1 external thread) output port facilitates direct integration into existing gas distribution networks or instrument manifolds.

Sample Compatibility & Compliance

This nitrogen generator is compatible with a broad range of analytical and preparative workflows requiring inert, dry, high-purity gas—including gas chromatography (GC), liquid chromatography–mass spectrometry (LC-MS), elemental analyzers, glovebox purging, and pharmaceutical stability testing chambers. It complies with general requirements for laboratory-grade nitrogen supply as defined in ASTM D6866-22 (for isotopic analysis support), ISO 8573-1:2010 (compressed air purity classes), and supports GLP/GMP-aligned documentation practices through stable, traceable output parameters. While not certified to FDA 21 CFR Part 11 out-of-the-box, its deterministic performance profile enables integration into validated environments when paired with external audit-trail logging systems.

Software & Data Management

The AYAN-500ML operates as a standalone hardware system with no embedded firmware or digital interface. All operational parameters—including pressure, flow, and runtime—are monitored via analog gauges and mechanical regulators. For laboratories requiring data capture, optional third-party pressure transducers and flow meters (e.g., Brooks Instrument SLA Series) can be installed upstream/downstream and connected to LabVIEW, DeltaV, or SCADA platforms for real-time logging, alarm triggering, and periodic calibration verification. No proprietary software or cloud connectivity is included—ensuring full data sovereignty and compatibility with air-gapped or regulated IT infrastructures.

Applications

• Carrier and makeup gas for capillary GC and GC-MS systems requiring O₂-free environments
• Purge and nebulizer gas in electrospray ionization (ESI) and atmospheric pressure chemical ionization (APCI) sources
• Inert atmosphere generation for moisture- and oxidation-sensitive synthesis, crystallization, and lyophilization
• Blanketing gas in pharmaceutical packaging lines and food-grade modified atmosphere packaging (MAP) pilot systems
• Reference gas supply for FTIR cell purging, Raman spectroscopy, and semiconductor metrology tools
• Calibration gas dilution systems where background O₂ interference must be minimized below detection thresholds

FAQ

What is the expected service life of the membrane module?
Under specified feed water quality (≥1 MΩ·cm) and ambient operating conditions (10–40 °C, RH <85%), the hollow-fiber membrane stack is rated for ≥15,000 hours of continuous operation. Performance verification via O₂ analyzer is recommended annually.

Can this generator replace liquid nitrogen dewars in routine lab use?
Yes—for applications requiring ≤500 mL/min at ≤0.4 MPa and purity >99.999%. It eliminates cryogenic handling hazards, storage logistics, and boil-off losses, though peak transient demand beyond rated flow requires buffer tank integration.

Is external air drying or filtration required?
No—this unit is designed for deionized water feed only and does not compress ambient air. It is not an air-to-nitrogen generator; it is a purified water electrolysis–assisted membrane concentrator. Compressed air input is not applicable.

How does dew point performance correlate with output pressure?
Dew point is pressure-dependent: at 0.4 MPa, the delivered nitrogen achieves ≤−40 °C; at lower pressures, the dew point rises proportionally per the Magnus formula. For sub-−60 °C requirements, a downstream desiccant dryer is advised.

Does the unit support custom purity configurations (e.g., 99.9% or 99.99%)?
Yes—via adjustable bleed or bypass configuration. Factory calibration supports discrete setpoints at 99.0%, 99.9%, 99.99%, 99.999%, and 99.9999% (with optional O₂ sensor feedback loop).