Industrial processes across manufacturing, food and beverage production, healthcare, and energy rely heavily on a group of gases commonly referred to as air products (gases that are derived directly from atmospheric air). Among these, nitrogen stands out as the most abundant, widely used, and versatile component.
Understanding Industrial Air Products
Air-derived gases are typically produced by separating atmospheric air using technologies such as cryogenic distillation, pressure swing adsorption (PSA), or membrane systems. Together, these products form the backbone of many industrial and scientific processes, supporting combustion, cryogenic cooling, preservation, and inerting.
Nitrogen makes up the largest share of atmospheric air, which makes it both economical and readily accessible. Its non-reactive nature is what gives it such broad utility across industries.
Nitrogen's Role in Industry
As an inert gas, nitrogen is commonly used to prevent unwanted reactions, making it essential wherever oxygen or moisture could cause degradation or safety risks. Key applications include:
- Creating inert atmospheres in manufacturing
- Extending shelf life in food packaging
- Preventing oxidation in electronics production
- Purging and pressure testing in oil and gas systems.
Cryogenic Applications of Nitrogen
ogy. Key applications of LN2 include:
- Preserving sperm, eggs, embryos for artificial insemination
- Freezing tissues, cells and DNA for future research
- Creating low-temperature environments for experiments in superconductivity, quantum research
- Cooling detectors in analytical instruments
- Freezing skin tissue in dermatology.
Production and Supply Considerations
Large-scale production
Cryogenic air separation units (ASUs) operate at industrial scale, producing high-purity nitrogen alongside oxygen and argon. These integrated systems support continuous, high-volume demand in sectors such as chemicals, steel, and energy.
On-site generation
For decentralised smaller demand, on-site nitrogen generation technologies offer flexibility and efficiency.
- Pressure Swing Adsorption (PSA) systems separate nitrogen from compressed air using carbon molecular sieves
- Membrane systems selectively permeate oxygen and water vapour to deliver nitrogen-enriched gas streams
- On-site liquid nitrogen generators integrate cryogenic cycles for local LN2 production.
Generating nitrogen at the point of use reduces dependency on delivered gas, minimises logistics costs, and improves supply reliability. This model is increasingly adopted in both industrial and laboratory environments to enhance operational resilience.
As a result of its abundance and production flexibility, nitrogen remains one of the most economical industrial gases and is likely to retain a central role in future gas supply strategies.
PEAK International Group Nitrogen Portfolio
Within the PEAK International Group portfolio, nitrogen generation technologies are engineered to deliver high performance, reliability, and scalability across diverse applications.
The PEAK Gas Generation i-Flow range delivers bespoke on-site gas generation, built around customer requirements, supported by strong industry partnerships with leading air compressor and filtration experts.
The i-Flow Prime and Mini 7000 series support industry applications in food and beverages, pharmaceutical manufacturing, electronics, metal fabrication, plastics and chemical processing with high-purity on-site nitrogen. With flow rates from 0.85 -285.08 m3/h, the modular and scalable i-Flow range can meet the demands of industrial applications with the latest gas purification technologies.
Within the Nobegen Cryogenics range, liquid nitrogen generators provide on-demand supply in flow rates ranging from 5-900l+/day. Built on over 30 years of knowledge of cryogenic technology, these on-site generators can provide continuous, reliable liquid nitrogen for applications in IVF, pharmaceutical, animal husbandry, dermatology and more.
Conclusion
Within the broader framework of industrial air products, nitrogen serves as a foundational utility gas. Its abundance, inert behaviour, and adaptability enable its use across a wide spectrum of engineering and scientific applications.
While gases such as oxygen and argon fulfil essential but more specialised roles, nitrogen’s combination of scalability, cost-efficiency, and process compatibility makes it indispensable. From inerting and preservation to advanced cryogenic applications, nitrogen underpins critical operations across modern industry.
As process requirements continue to evolve towards greater efficiency, control, and autonomy, nitrogen (particularly through on-site generation) will remain a core component of industrial gas infrastructure.
Find Out More
To explore nitrogen generation solutions or determine the most suitable system for your application, contact your local PEAK International Group representative. You can also get in touch with us via the Noblegen or Peak Gas Generation websites for a consultation or quote.