Air gas separation technologies

Air gas separation technologies

Technologies tailored to every need

With over 40 years of experience, NOVAIR has developped a deep knowledge of all on-site air separation technologies for the production of nitrogen or oxygen, and offers the widest choice of generators on market. Depending on the flowrate and the purity required, NOVAIR offers the most suitable technology : 


 * contact us for higher flows


PSA Technology

NOVAIR nitrogen / oxygen generators are based on a PSA process (Pressure Swing Adsorption). It consists in an air gases separation thanks to a molecular sieve capable to adsorb nitrogen / oxygen under pressure.
The nitrogen/oxygen generator is composed of two separation columns (adsorbers) filled with molecular sieve, called zeolite or CMS (Carbon Molecular Sieves). When the compressed air pressurises a column, nitrogen (or oxygen) is gradually being retained by the molecular sieve while oxygen (or nitrogen) is going directly to the output of the generator.


DS-PSA Oxygen Technology

Result of years of R&D effort and investment, the DS-PSA technology is taking PSA to the next level.
This exclusive know-how from NOVAIR is based on a double stage PSA process : with 2 molecular separation stages, DS-PSA removes nitrogen, argon, and any trace of pollutants remaining after the first stage, making it possible to reach up to 99,50xygen concentration, with an exceptional stability.


Modular PSA Technology

Unlike twin-tower standard systems, modular PSA generators feature multiple modules of molecular sieve, each implementing an optimized patented PSA process.

Production capacity can be easily adjusted directly on site without any skilled personnel by simply adding or removing modules.


Membrane Technology

NOVAIR generators separate different components of the air by means of hollow fibers over lengths adapted to each need.


V-PSA Technology

NOVAIR V-PSA generators extract the available oxygen in the ambient air from the other gases by applying the Vacuum Pressure Swing Adsorption (V-PSA) technology