Membrane nitrogen generator provides on-site nitrogen production from compressed air using hollow fiber membrane separation technology, delivering a continuous and reliable gas supply for industrial applications without cylinder or liquid nitrogen dependency.
95–99.5%
purity
Typical membrane range
Typical membrane range
5–5000 Nm³/h
Flow Rate
Customizable
Customizable
0.6–1.0 MPa
Pressure
Standard outlet
Standard outlet
Continuous
Operation
24/7 operation
24/7 operation
What Is a Membrane Nitrogen Generator?
A membrane nitrogen generator separates nitrogen from compressed air using hollow fiber membrane technology. Oxygen, moisture, and other gases pass through the membrane faster, leaving nitrogen as the product gas.
It provides continuous on-site nitrogen generation with a compact design, stable output, low maintenance, and is ideal for applications requiring moderate nitrogen purity and reliable daily operation.
Why Membrane Solution Matters？
Simple structure, fast start-up, and continuous nitrogen output make membrane systems suitable for users who prioritize operational stability and low maintenance over high purity or large flow demand.
Membrane Nitrogen Generator Technical Specifications
Key operating parameters that define system performance, helping you confirm whether the membrane nitrogen generator matches your required purity, flow demand, and site conditions.
Technical Parameters
● Nitrogen Purity：95% – 99.5%
● Flow Capacity：1–3000 Nm³/h (customized)
● Outlet Pressure：0.6–1.0 MPa
● Operating Pressure：0.8–1.3 MPa
● Air Quality Requirement：Dry, oil-free compressed air (ISO 8573-1 Class 1-4-1 recommended)
● Power Supply：380V / 50Hz / 60Hz (optional)
● Control System：PLC automatic control
● Installation Type：Indoor / Skid-mounted / Containerized
Membrane Nitrogen Generator Application Industries
Membrane nitrogen systems are used where stable nitrogen is needed for safety protection, oxygen control, and storage inerting with low to medium purity requirements.
Oil & Gas (Tank & Pipeline Protection)
Prevents oxygen contact in pipelines and storage tanks to reduce explosion risk.
Food Packaging (Freshness Protection)
Creates low-oxygen packaging environment to slow food oxidation and extend shelf life.
Chemical Storage (Tank Blanketing)
Maintains inert gas inside chemical tanks to prevent reactions and fire risk.
Electronics Storage (Anti-Oxidation Protection)
Protects components from moisture and oxidation during storage and handling.
Safety & Fire Prevention (Inert Atmosphere)
Provides inert gas to reduce fire and explosion risks in industrial storage areas.
Pharmaceutical & Lab Use (Basic Nitrogen Supply)
Used in labs and pharma storage to maintain low-oxygen conditions for samples and materials.
Why Choose a Membrane Nitrogen Generator?
Discover why a membrane nitrogen generator is ideal for continuous on-site nitrogen generation, offering compact installation, low maintenance, reliable performance, and lower operating costs.
Continuous Nitrogen Supply
Provides stable, uninterrupted nitrogen output for continuous industrial production without delivery interruptions.
Lower Operating Costs
Produces nitrogen on-site from compressed air, reducing dependence on cylinders or liquid nitrogen supply.
Low Maintenance
Few moving components help minimize routine servicing and reduce long-term maintenance costs.
Compact Footprint
Skid-mounted design saves installation space and fits easily into factories, mobile units, and offshore applications.
Quick Installation
Simple system integration allows fast installation with existing compressed air and pipeline systems.
Fast Start-Up
Reaches normal operating conditions within minutes, helping reduce downtime after system startup.
Reliable Daily Operation
Delivers consistent nitrogen purity and flow for stable performance in demanding industrial environments.
Membrane vs PSA Nitrogen Generator
| Item | Membrane | PSA |
| Purity | 95–99.5% | 95–99.999% |
| Start-up | Very fast | Moderate |
| Maintenance | Low | Medium |
| Footprint | Compact | Larger |
| Best For | Low–medium purity | High purity |
When Should You Choose a Membrane Nitrogen Generator?
A membrane nitrogen generator is recommended if you:
● You need continuous nitrogen supply.
● You require nitrogen purity between 95% and 99.5%.
● You have limited installation space.
● You prefer low-maintenance operation.
● You need fast installation and startup.
Not Sure Which Nitrogen System Fits Your Application?
Our engineers will recommend the right nitrogen solution based on your purity, flow rate, pressure, and installation requirements.
Membrane Nitrogen Generator System Configuration Options
A complete system that converts compressed air into nitrogen through air treatment, membrane separation, and pressure control for stable on-site nitrogen supply.
Air Compressor
supplies stable compressed air, determines total nitrogen output capacity.
Air Filters
remove oil, dust, protect system and ensure gas purity.
Air Dryer
removes moisture, protects membrane and stabilizes performance.
Membrane Module
separates nitrogen from air, defines purity level.
Nitrogen Receiver
stores nitrogen, balances demand and stabilizes pressure.
Pressure Regulator
controls outlet pressure, ensures consistent gas delivery.
Membrane Nitrogen Generator Working Principle
A membrane nitrogen generator separates nitrogen from compressed air using hollow fiber membrane technology. Oxygen and moisture pass through the membrane, while nitrogen is collected as product gas.
The system operates in a continuous, low-maintenance process without chemical reaction or complex mechanical components.
Simple and Continuous Operation
Membrane separation enables stable nitrogen output with fewer moving parts and simplified system operation for industrial use.
Want a deeper explanation of membrane separation technology?
Distinctive Features of Membrane Nitrogen Generator
Continuous operation
Ensures stable nitrogen supply for continuous industrial production without interruptions or downtime risks.
Compact skid design
Skid-mounted structure saves installation space and is suitable for compact factories or mobile system layouts.
Weatherproof options
Optional outdoor enclosure supports stable operation in harsh environments such as humidity, dust, and temperature changes.
Low noise
Low-noise design allows installation near production areas while maintaining a quieter and safer working environment.
Automatic control
PLC automatic control enables stable nitrogen output with reduced manual operation and simplified daily management.
Remote monitoring (optional)
Optional remote monitoring provides real-time system status visibility and supports easier maintenance and operation control.
Custom Options for Membrane Nitrogen Generator
Available Models & Custom Options
Membrane nitrogen generators can be configured based on your production scale, installation environment, and safety requirements.
Choose the right system based on your application:
● Small / Medium / High Flow Capacity
● Indoor or Outdoor Installation
● Containerized Mobile System
● Explosion-Proof Configuration (for hazardous environments)
● Custom Voltage & Power Standards
Each system is engineered to match specific industrial nitrogen demand, ensuring stable performance and efficient operation in real working conditions.
Get the Right Membrane Nitrogen Generator
Tell us your nitrogen purity, flow rate, pressure, and application. Our engineers will recommend the right system for your project.
HuaTai Gas Generation System Project Cases Overview
HuaTai Gas Generation System have been applied in 1000+ industrial projects worldwide since 2005, covering mining, laser cutting, food packaging, metal processing, pharmaceuticals, chemical industry, oil & gas, wastewater treatment, aquaculture, water plants, and electronics manufacturing. Each project is engineered based on real oxygen demand and operating conditions to ensure stable on-site oxygen supply and long-term industrial reliability.
Industry Applications
Mining | Laser Cutting | Food Packaging | Industrial Manufacturing | Metal Processing | Pharmaceutical | Chemical Industry | Oil & Gas | Wastewater Treatment | Water Plants & Aquaculture | Electronics & Semiconductors
How to Choose the Right Membrane Nitrogen Generator
Choosing the right membrane nitrogen generator depends on required nitrogen flow, purity level, installation space, and operating environment. Select the system size based on actual demand, confirm purity (typically 95%–99.5%), and choose installation type such as indoor, outdoor, or containerized. Consider optional requirements like weatherproof, low-noise, explosion-proof, and voltage compatibility to ensure stable performance and efficient long-term operation.
Before Requesting a Quote
Prepare the following information to receive an accurate system recommendation.
● Required nitrogen flow (Nm³/h)
● Required nitrogen purity (%)
● Working pressure (bar)
● Application
● Operating hours per day
● Installation location
● Ambient temperature
● Local power supply
Frequently Asked Questions About Membrane Nitrogen Generator
HUATAI engineering team answers the most common technical and purchasing questions to help you quickly understand system capability, selection logic, and real operating performance before making a decision.
What nitrogen purity can a membrane nitrogen generator reach?
HUATAI membrane systems typically deliver 95%–99.5% purity, depending on flow rate and air supply conditions.
How does it compare with PSA nitrogen generators?
Membrane systems are simpler and lower maintenance, while PSA systems provide higher purity and wider industrial application range.
What is the operating cost?
Operating cost mainly depends on air compressor energy consumption, making system efficiency and configuration important.
Can it run continuously 24/7?
Yes. Membrane nitrogen generators are designed for continuous industrial operation with stable output.
Is membrane technology suitable for all applications?
No. It is best for low to medium purity applications where continuous supply and low maintenance are more important than ultra-high purity.
What affects nitrogen output and stability?
Air quality, flow demand, and compressor capacity directly impact output stability and purity level.
How long does a membrane module last?
Under normal conditions and proper air treatment, membrane modules typically last 5–8 years.
What installation conditions are required?
Stable power supply, clean compressed air, and adequate ventilation space are required for proper operation.
Request Custom Membrane Nitrogen Generator Design from HUATAI
HUATAI provides custom membrane nitrogen generator design based on your oxygen purity, flow rate, pressure, and installation requirements. Share your project details, and our engineering team will design a system that matches your actual operating conditions and production needs.