GAS GENERATORS
Nitrogen and Oxygen Gas Generators
Nitrogen and Oxygen Gas Generators can be used in a wide range of applications including mining, mineral processing, oil and gas, aquaculture, medical facilities, food and beverage packaging, pharmaceutical, ozone and water treatment, marine, electronics and laser cutting.
We supply oxygen and nitrogen generators through our certified partner Gas Generation Australia, the Australian distributer for Noxerior products. We receive expert advice and training in all their innovative products and patented technology, enabling Pneumatic Engineering to provide you with faster and superior installation and delivery of your oxygen/nitrogen gas generation system.
We work across all business sectors and are backed by our highly skilled team of employees who are committed to finding innovative and world-class solutions, particularly when it comes to product customisation to meet our client’s unique specifications.
Onsite Gas Generation Technology
PSA and membrane generators efficiently extract oxygen and nitrogen from ambient air, which contains 21% oxygen, 78% nitrogen, and small amounts of argon and rare gases. Both technologies rely on the physical properties of gases to separate them—PSA uses adsorption, while membrane technology uses diffusion. These methods ensure a consistent and reliable supply of the desired gas for various applications.
Membrane generators
Membrane generators use selective permeation to efficiently separate gases like nitrogen and oxygen from air. Each gas has a unique permeation rate, determining how it dissolves and diffuses through the membrane. This method is ideal for applications requiring high volumes of gas with moderate purity.
The separation occurs within a cylindrical module filled with hollow fibre membranes. Pressurised air enters one end of the fibres and flows through the fibre bores. As the air contacts the membranes, gas separation begins. “Fast” gases such as oxygen, carbon dioxide, and water vapour permeate quickly through the fibre walls and are vented out of the module. Nitrogen, being a slower gas, continues through the fibre bores and exits at the end of the high-pressure shell, ready for use.
This efficient process ensures a steady supply of nitrogen for various industrial applications.
Pressure Swing Adsorption Separation
Pressure Swing Adsorption (PSA) generators use selective adsorption to separate gases like nitrogen and oxygen from ambient air. This method is well-suited for applications requiring high-purity gases in lower volumes. Each gas has a specific adsorption rate, determining how it is captured by the adsorbent material in the system.
PSA generators operate with two vessels filled with molecular sieves—zeolite for oxygen generation and activated carbon for nitrogen. The process begins by pressurising one vessel with clean air, where unwanted gases are adsorbed onto the filter medium at high pressure. As this occurs, the system switches to the second vessel to continue the process.
When the first vessel reaches its capacity, it is depressurised to release the trapped gases, allowing the adsorbent material to be used again. This alternating pressurisation and depressurisation ensure a continuous supply of high-purity gas.
PSA technology provides a reliable and consistent method for producing oxygen and nitrogen, making it a preferred option for industries requiring precise gas purity.
Benefits of Onsite Gas Generation
Onsite gas generation eliminates the recurring costs of delivery, rental, and refills associated with traditional liquid gas, resulting in significant long-term savings after the initial investment.
Onsite gas generators provide a continuous and reliable supply, avoiding the supply inconsistencies and potential shortages that can occur when relying on external liquid gas suppliers.
Onsite gas generation reduces the risks associated with handling and storing liquid gas, which can be hazardous due to its extreme cold and potential for asphyxiation, by producing gas at ambient temperatures and only in required amounts.
Onsite gas production is more environmentally friendly, as it reduces the carbon footprint by eliminating the need for transportation and its associated emissions, making it a more sustainable option.
Onsite gas generators offer precise control over purity, pressure, and flow, ensuring that the gas produced meets specific application requirements, which enhances overall quality control compared to externally sourced liquid gas.
