On-site gas generation

Nitrogen Purification Systems

For applications that demand ultra-high nitrogen purity, a purification system offers an effective way to reach the next level of performance. While many nitrogen generators can deliver high purity on their own, a purification system goes further by removing the final traces of oxygen. This makes it particularly valuable in industries such as electronics, pharmaceuticals, food processing, and laser cutting, where even the smallest impurities can affect outcomes. It also provides the flexibility to downsize the generator and compressor, helping to optimise energy use and system design.

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What is a nitrogen purification system?

A nitrogen purification system is the final stage in many on-site nitrogen generation setups. It’s designed to eliminate trace amounts of oxygen left behind after nitrogen is separated from compressed air. This is typically achieved using a catalytic process, where a small amount of hydrogen is introduced to react with the oxygen. The result is nitrogen of exceptionally high purity — often exceeding 99.999%.

The benefits of a nitrogen purification system

Adding a purification system to an on-site nitrogen setup offers several practical and performance-related advantages, particularly when purity and efficiency are a priority:

 

1. Achieve ultra-high nitrogen purity
Reach levels of 99.999% or higher by removing residual oxygen left after initial generation.

 

2. Reduce the size of your overall system
Allows for a smaller nitrogen generator and compressor, lowering capital investment.

 

3. Lower energy consumption
With reduced feed air requirements, energy use drops, improving overall system efficiency.
 

4. Compact and easy to integrate
Designed to fit seamlessly alongside existing equipment with minimal installation effort.

 

5. Support reliable, continuous operation
Built-in automation and monitoring features maintain consistent purity 24/7.

 

6. Improve system sustainability
Reduced energy use and smaller components contribute to a lower environmental footprint.

Nitrogen purification system

How nitrogen purification works?

Nitrogen purification systems use a catalytic process to remove residual oxygen from nitrogen gas produced by a generator. The process begins by dosing a small, precise amount of hydrogen into the nitrogen stream. This hydrogen reacts with the oxygen in the presence of a catalyst, forming water vapour. The moisture is then separated from the gas, resulting in nitrogen with a purity of up to 99.9999%.

 

To ensure consistent performance, advanced purification systems are equipped with continuous monitoring of temperature and moisture levels, as well as integrated overflow protection and safety features to prevent hydrogen accumulation. The hydrogen dosing is fully automated and adjusted based on the incoming nitrogen purity and flow rate. In more advanced setups, real-time monitoring of pressure, flow, and purity is available via remote connectivity. This controlled and intelligent process guarantees a stable supply of ultra-pure nitrogen for demanding applications.

Where is nitrogen used?

The use of nitrogen is required in countless industrial and professional applications. Here are just a few.

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Pneumatech nitrogen purification systems – More than just a product

Our expertise goes beyond supplying purification equipment. Here’s how we support you throughout the process:

 

  • Tailored system design: We assess your specific nitrogen purity requirements and help you select the right purification solution to match.
  • Seamless integration: Our systems are designed to work efficiently alongside your existing nitrogen generator and compressor setup.
  • Complete air and gas expertise: As specialists in air treatment and gas generation, we can support all aspects of your nitrogen and air quality needs.
  • Efficiency improvements: We help identify opportunities to reduce energy use and operating costs through flow monitoring, performance analysis, and system optimisation.
  • Long-term support: From commissioning to ongoing monitoring, we’re here to ensure reliable, efficient operation over the lifetime of your system.

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Have questions or curious about how our nitrogen generators can boost your operations? Reach out to us! Our team is eager to provide insights and support to help you optimize your processes with our cutting-edge nitrogen technology. Let's transform your operations together!

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