Industrial Nitrogen Generator & On-Site Nitrogen Generation

Onsite nitrogen generation provides a reliable, continuous supply of high-purity nitrogen gas without the need for cylinders or bulk liquid deliveries. Using compressed air to generate nitrogen at the point of use, these systems help manufacturers reduce operating costs, improve efficiency and maintain complete control over their nitrogen supply.

Nitrogen generators continuously produce high purity nitrogen from compressed air and the installation is simple: pipe in compressed air and pipe out nitrogen.

Just connect a compressed air line to the inlet of the nitrogen generator package, connect the outlet to your nitrogen line and the unit is ready for trouble free operation.

A continuous supply of consistent purity is then available minutes after start-up, and it can expand in line with your business needs – a complete future proof solution!

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Investing in on-site nitrogen generation delivers measurable return on investment, with many customers reporting a payback period between 24-36 months. Alongside the energy and cost savings, on-site generation also improves logistics and health & safety across your site. The cost of generating your own nitrogen can be up to 80% less than bottled nitrogen or bulk liquid nitrogen storage.

Direct Air work with leading manufacturers to be able to offer bespoke nitrogen generation solutions. We’re proud to be able to can offer the complete nitrogen package including compressors, pipework, nitrogen generators and essential downstream equipment.

The process will be managed in-house at Direct Air from the initial contact to ongoing maintenance.

Benefits of onsite Nitrogen Generation

Supply on demand

Nitrogen generators are designed to operate to meet your demand, up to 24 hours/day, 7 days/week. Having a constant and reliable supply of nitrogen removes the inconvenience of running out of stored nitrogen or waiting for deliveries during adverse weather conditions. And by matching the demand, it reduces potential downtime of equipment.

Low operating costs

The cost of generating your own nitrogen can be up to 80% less when compared to bottled nitrogen or bulk liquid nitrogen storage. Generating your own nitrogen also eliminates ongoing costs for having gas delivered as well as in house re-ordering processes.

Environmental responsibility

Using a nitrogen blanket during beverage storage, pre and post bottling, prevents the growth of bacteria and other microbes. Another use is purging air from pipes and hoses prior to bottling and to ensure oxygen is not introduced during transport. It can also help to preserve taste and freshness.

Improved safety

Nitrogen generators remove the health and safety concerns regarding high pressure storage cylinders or cryogenic vessels, along with no more potential hazards associated with trucks entering site to load/unload high pressure liquid nitrogen.

Nitrogen purity

Purity levels up to 99.999% are achievable with modular nitrogen generator units, which have continuous real-time monitoring inbuilt so you can see the purity produced at any time. Where applications demand ultra-high nitrogen purity, systems are available with full commissioning support.

Nitrogen generator finance

Direct Air can help your business find the most cost-effective solution to finance your nitrogen generator, compressor and downstream equipment. With flexible payment options that protect cashflow, financing is a popular route to achieving a strong return on investment without high upfront capital expenditure. Many customers see a payback period between 24-36 months. Whether you have a long or short-term demand, our finance packages can cater to the needs and budgets of almost any business.

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FAQ's

Quick answers

Direct Air are experienced in providing Nitrogen generation equipment for many industrial applications. Here are a few examples:

Food packaging

Residual oxygen within a package promotes bacterial growth and oxidation, which can compromise quality and shelf life. Using nitrogen minimises the levels of oxygen present, therefore preserving quality and improving shelf lie. This is particularly relevant to coffee processing, meat packaging, dried foods processing and lettuce packaging.

Beverage applications

Chemical processing

Blanketing with an inert gas, such as nitrogen, is often used to ensure the chemical integrity and maximise safety. Nitrogen tank blanketing controls the oxygen concentration and humidity within the vessel, protecting the product from contamination, degradation, and chemical change. The reduced oxygen level minimises the chance of explosion. A nitrogen blanket can also be used to balance tank volumes and prevent collapse during unloading.

Metal processing

The use of nitrogen is widespread in the metal processing industry, including much of the support equipment such as lasers. Using nitrogen to minimise the contact with oxygen improves final product quality and minimises rework.

Electronic applications

Nitrogen is mainly used for automatic soldering machines and stops the oxidisation of solder.

Efficient nitrogen generation solution for our customer

Thalia Waste Management were seeking an effective solution to fulfil the nitrogen that they require on site, as well as a reliable compressed air system service provider to maintain their existing system for optimum efficiency moving forward. After discussing nitrogen specifications, the Oxywise N35 on-site generator was provided to Thalia by Direct Air – producing nitrogen with 99.999% purity, at 29.2 m³/hr.

Services

We offer complete compressed air solutions including design, installation, servicing & WSE inspections.

Products

We consider your entire compressed air system from the compressor to downstream equipment & pipework.

Industry / Sector

Whatever the industry and whatever the application, there's a growing demand for higher-quality compressed air.

How Nitrogen Generators Work

Nitrogen generators produce high-purity nitrogen by separating nitrogen from compressed air. As atmospheric air contains around 78% nitrogen, the system removes oxygen, moisture and other trace gases to provide a continuous nitrogen supply at the point of use.

There are two main nitrogen generation technologies: Pressure Swing Adsorption (PSA) and membrane. The right solution depends on the required nitrogen purity, flow rate and application.

A PSA nitrogen generator uses Carbon Molecular Sieve (CMS) technology to separate nitrogen from oxygen. Before the separation process begins, compressed air passes through a multistage filtration system to remove moisture, oil and particulates. The air then enters twin CMS vessels, where oxygen is adsorbed while nitrogen passes through. As one vessel produces nitrogen, the other regenerates, ensuring a continuous supply of high-purity nitrogen.

A membrane nitrogen generator works by passing compressed air through hollow-fibre membranes. Oxygen, water vapour and other gases permeate through the membrane, while nitrogen is retained and delivered to your application. Membrane technology is a reliable and efficient option for applications that do not require the highest nitrogen purity levels.

Both technologies connect directly to your existing compressed air system, allowing you to generate nitrogen on demand and reduce reliance on delivered gas.

Understanding how nitrogen generation technology works, including its design and applications, can help businesses optimise operations while ensuring they meet purity and efficiency requirements. Our blog dives into how nitrogen generators work in more detail.

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