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Email : mrwin@cnbangwin.com
WhatsApp / Mob : +86 156 5177 2521
Email : mrwin@cnbangwin.com
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Nitrogen Generation Plant: Complete Guide to Industrial Nitrogen Production
Aug 25 , 2026
Nitrogen is the most utilized industrial gas globally.
Its diverse applications include inerting, purging, food packaging, metal fabrication, chemical manufacture, electronics assembly, and many more..
However, some companies require continuous nitrogen on-site.
Instead of depending solely on cylinder or bulk nitrogen deliveries, installing a Nitrogen Generation Plant allows users to produce nitrogen where they need it.
Users can generate nitrogen directly from atmospheric air.
Industrial nitrogen generation systems offer:
l Steady nitrogen production
l Scalable production capacity
l Exact nitrogen purity
l Eliminate gas transport
l Ease of on-site use
Nanjing Bangwin Gas specializes in industrial gas generation systems and tailor-made nitrogen generation plants.
Click here to learn more: Nanjing Bangwin Gas Official Website
Nitrogen Generation Plants are industrial systems which produce nitrogen from atmospheric air.
Atmospheric air contains around 78% nitrogen.
As such, the air we breathe is an abundant source of nitrogen.
The Nitrogen Generation Plant removes oxygen and other gases from compressed air.
It then supplies nitrogen at your desired purity and pressure..
Different nitrogen production technologies are available for different required capacities.
The most common technologies are:
l PSA nitrogen generation system
l Cryogenic air separation unit
l Membrane nitrogen generator
For industrial purposes, PSA nitrogen generation systems and cryogenic air separation units are particularly useful.
Different technologies involve slightly different processes.
However, a standard industrial nitrogen generation system will include the following stages:
Step 1: Air Compression
First, the nitrogen generation system intakes atmospheric air with a compressor.
The compressor increases the pressure of the air.
High pressure air then feeds into the air purification system.
Step 2: Compressed Air Purification
This stage eliminates common air contaminants such as:
l Water
l Oil
l Dust particles
l Carbon dioxide
Purifying the air protects later stage equipment.
Step 3: Nitrogen Separation
Here, the nitrogen generation system isolates nitrogen from oxygen and other gases..
PSA systems utilize molecular sieve adsorbents
Cryogenic systems utilize distillation at low temperatures
Step 4: Nitrogen Buffering
The nitrogen generation system transfers the nitrogen into a buffer tank.
The tank acts to stabilize:
l Pressure
l Flow rate
l Production surges
Step 5: Nitrogen Distribution
Finally, the system distributes nitrogen to your production facility.
Nitrogen can feed into:
l Production machinery
l Storage tanks
l Pipe networks
l Packaging systems
The intended application decides what nitrogen production technology you should choose.
4.1 PSA Nitrogen Generation Plant
PSA nitrogen generation plants work using pressure swing adsorption.
The system adsorbs oxygen and other gases with molecular sieves.
Nitrogen then flows through the adsorption vessel.
Once the sieve has reached its max absorption capacity, the system regenerates the sieve.
PSA plants utilize multiple adsorption vessels.
While one vessel regenerates, the other can produce nitrogen.
This allows PSA plants to run continuously.
PSA Nitrogen generation plants are:
l Versatile
l Compact
l Easy to use
l Quick to startup
l Produce nitrogen on-site
Suitable for various small-to-medium scale industrial uses
Interested in learning more? Check out our PSA Nitrogen Generator page!
4.2 Cryogenic Nitrogen Generation Plant
Cryogenic nitrogen generation systems separate air using extremely cold temperatures.
Specifically, Cryogenic Air Separation Plants can produce:
l Nitrogen
l Oxygen
l Argon
Furthermore, cryogenic plants can produce both gas and liquid forms of these products.
Cryogenic nitrogen generation is ideal for large scale industrial nitrogen demand.
Looking for more information? Check out our:
l Cryogenic Air Separation Plant page.
l Air Separation Unit page.
l Liquid Nitrogen Plant page.
4.3 Membrane Nitrogen Generator
Membrane nitrogen generation separates gases based on their permeability.
They are also known for their compact design and relative ease-of-use.
However, they may not be suitable for every high purity nitrogen application.
Consult with a nitrogen specialist to determine your needs.
Considerations will include purity, capacity, pressure, and cost of operation.
Every Nitrogen Generation Plant is made up of various major components.
Air Compressor
The air compressor feeds compressed air to the nitrogen generation system.
Its efficiency affects the energy usage of the whole plant.
Air Dryer
As the name suggests, an air dryer removes moisture from compressed air.
Dry air protects the molecular sieves and other equipment downstream.
Air Filters
Air filters trap particulates and oil aerosols.
This further improves the quality of air before separation.
PSA Adsorption Towers
PSA Nitrogen Generation Plants typically have 2 or more adsorption towers.
The towers take turns adsorbing gases and regenerating.
With multiple towers, the plant can continually produce nitrogen.
Nitrogen Buffer Tank
A buffer tank evenes out nitrogen pressure fluctuations.
The tank also acts as a buffer for sudden increases in demand.
Control System
A PLC control system automatically manages:
l Valve actuation
l Pressure
l Flow rate
l Nitrogen Purity
l Equipment alerts
As a result, the nitrogen generation system can safely run unattended.
Every industry has different demands for nitrogen purity.
As a result, you should have a specific purity requirement in mind before buying a nitrogen generation plant.
Some common applications along with their typical purity requirements are:
|
Application |
Typical Requirement |
|
Tire inflation |
Moderate purity |
|
Food packaging |
High purity |
|
Metal processing |
High purity |
|
Electronics |
Very high purity |
|
Chemical inerting |
Application dependent |
Some key variables include:
l Nitrogen Purity
l Nitrogen Flow Rate
l Outlet Pressure
l Annual Operating Hours
l Peak Demand
Consult with your supplier to properly size your nitrogen generation plant to your needs.
Nitrogen Generation Plants have various applications across many industries.
Food Processing
Nitrogen is often used in food manufacturing to:
l Modify atmosphere packaging
l Preserve food
l Protect beverages
l Provide inert gas for storage
Because nitrogen reduces oxygen levels, it protects food from oxidation.
Chemical Manufacturing
In the chemical industry, nitrogen is used for:
l Tank inerting
l Pipeline purging
l Chemical storage
l Chemical process protection
Similar to food storage, nitrogen protects chemicals from oxidative damage.
Electronics Manufacturing
Nitrogen is used in electronics manufacturing when:
l Doing soldering work
l Making semiconductors
l Producing components
l Heat treating parts
Nitrogen prevents damaging oxidation during these processes.
Metal Processing
Nitrogen is used in metal working during:
l Heat treatment
l furnace protection
l Laser cutting operations
l Metal processing
Different gases and purities are used depending on the material and application.
Oil and Gas
Nitrogen is used in Oil & Gas to:
l Purge pipelines
l Inert storage tanks
l Maintain equipment
l Make certain chemical processes possible
Pharmaceutical Manufacturing
Nitrogen is used in pharmaceutical production for:
l Product protection
l Filling/storage tanks
l Packaging
l Controlling chemical processes
Why Install a Nitrogen Generation Plant?
Less Transportation
Companies produce nitrogen on-site, at the location where it will be used.
As a result, companies can decrease gas deliveries.
Secure Supply
If you produce nitrogen on-site, you do not rely as heavily on incoming gas deliveries.
This can increase production uptime.
Production Flexibility
Plant operators can modulate production to meet demand.
Consequently, nitrogen generators can accommodate fluctuating production schedules.
Decreased Logistics
Compared to receiving nitrogen cylinders, companies do not need to move as many cylinders on-site.
As a result, companies can minimize storage and logistics needs.
Long-Term Value
Nitrogen generation plants can last for decades if designed and built correctly.
Still, companies should evaluate both CAPEX and OPEX before making the decision to purchase a nitrogen generation system.
Several variables affect the price of a Nitrogen Generation Plant.
Plant Production Rate
Nitrogen Generation Systems with higher production rates require more compressors and accessories.
Therefore, the production rate strongly influences the purchase price.
Desired Nitrogen Purity
Users may require additional stages of purification to reach high purities.
As a result, more equipment may be necessary to meet the purity requirements.
Desired Outlet Pressure
Nitrogen Generation Plants producing high-pressure nitrogen will require additional compressors or booster stages.
Technology
Different nitrogen generation technologies have varying investment levels and requirements.
For example, PSA and membrane systems require different investment profiles than cryogenic nitrogen generation plants.
Level of Automation
Suppliers can equip nitrogen generation plants with advanced control features.
These features increase the cost of the plant but can minimize operator intervention.
Site and Installation
Installation conditions can impact the following:
l Foundations
l Piping requirements
l Electrical work
l Installation labor costs
Therefore, nitrogen generation plant suppliers should survey the site before designing the final system.
Picking the perfect nitrogen generator involves more than just identifying the lowest price.
10.1 Understand Nitrogen Needs
Calculate your:
l Average nitrogen flow
l Peak nitrogen flow
l Annual operating hours
l Expected future demand
Doing so will allow you to properly size your nitrogen generation plant.
Avoid oversizing your plant!
10.2 Know Your Purity Requirements
Engineers can produce nitrogen to different levels of purity.
Identify the purity your process actually requires.
10.3 Identify Required Outlet Pressure
Note the pressure required by the process or equipment that will utilize the nitrogen plant’s output.
Outlet pressure dictates compressor selection.
10.4 Evaluate Energy Usage
Electricity costs are a large portion of the total cost of ownership.
Compare the power consumption of each proposed nitrogen generation system.
10.5 Consider the Supplier
Select a supplier that has experience with:
l Gas separation technology
l Pressure Swing Adsorption
l Cryogenic technology
l Industrial gas applications
|
Feature |
Nitrogen Generation Plant |
Nitrogen Cylinders |
|
Supply |
On-site |
Delivered |
|
Production |
Continuous |
Limited by cylinders |
|
Transportation |
Low |
Higher |
|
Storage |
Buffer tank |
Cylinder storage |
|
Long-Term Use |
Suitable |
Less convenient |
|
Initial Investment |
Higher |
Lower |
Nanjing Bangwin Gas is an industrial gas supply company.
The company specializes in designing and manufacturing industrial gas generation systems and cryogenic equipment.
Nanjing Bangwin Gas manufactures a wide range of nitrogen production systems, including:
l Nitrogen Generation Plant
l Nitrogen Plant
l Cryogenic Air Separation Plant
l Air Separation Unit
The focus on customized system design allows Nanjing Bangwin Gas to cater to a wide range of customer specifications.
Customers can customize their nitrogen generation system based on production parameters like:
l Required production capacity
l Nitrogen purity
l Outlet pressure
l Operating conditions
l Available installation space
Learn More About Nanjing Bangwin Gas Nitrogen Generation Systems
1. What is a nitrogen generation plant?
A nitrogen generation plant separates nitrogen from atmospheric air and supplies nitrogen for industrial applications.
2. How does a nitrogen generation plant work?
The system compresses and purifies air. Then, it separates nitrogen using PSA, membrane, or cryogenic technology.
3. What is the most common nitrogen generation technology?
PSA nitrogen generation provides a practical solution for many small and medium industrial applications.
4. Can a nitrogen generation plant produce high-purity nitrogen?
Yes. The achievable purity depends on the selected technology and system configuration.
5. What industries use nitrogen generation plants?
Food, electronics, chemicals, pharmaceuticals, metal processing, oil and gas, and other industries use nitrogen generation systems.
6. How much does a nitrogen generation plant cost?
The cost depends on capacity, purity, pressure, technology, automation, and installation requirements.
7. Can a nitrogen plant produce liquid nitrogen?
A conventional PSA nitrogen generator produces gaseous nitrogen.
A dedicated Nitrogen Liquefaction Plant can convert nitrogen gas into liquid nitrogen.
8. How long can a nitrogen generation plant operate?
A properly designed and maintained plant can provide long-term continuous operation.
Nitrogen Generation Plants allow you to produce nitrogen gas on-site.
Nitrogen generators let businesses produce their own nitrogen gas from the air. Rather than relying on delivered nitrogen gas, nitrogen generation plants offer an alternative solution.
Pressure Swing Adsorption is ideal for many industries. These units are affordable and easy to install. Large businesses or companies that require liquid nitrogen may want to consider cryogenic air separation plants.
Before deciding on a nitrogen generation system, ensure you know your company’s nitrogen demand. Also, determine the required purity and pressure of nitrogen needed for your operations.
Consider how many hours per year you will operate the plant. Finally, compare the energy consumption of each system.
Explore Nanjing Bangwin Gas’s Nitrogen Generation Systems Today
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