PSA Nitrogen Generator Foods Fats Oils Snacks

PSA Nitrogen Generator Foods Fats Oils Snacks

Onsite PSA Nitrogen Generator for foods fats oils snacks drinks beers wines fruits vegetables Production Processing Storage & Delivery
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Product Details

Onsite PSA Nitrogen Generator for foods fats oils snacks drinks beers wines fruits vegetables Production Processing Storage & Delivery


CAN GAS PSA nitrogen generators provides a clean nitrogen blanket to edible oil. It prevents the growth of bacteria and preserve better freshness with fermentation control and odor suppress.
Now nitrogen packaging is a trend for food industry to prevent food products spoilage, preserve freshness, maintain flavor and exends shelf life.
PSA principle


PSA Nitrogen Generator is a carbon molecular sieve as adsorbent, the use of pressurized adsorption, desorption of the principle of step-down adsorption of oxygen from the air, resulting in the separation of nitrogen equipment. Carbon molecular sieve of O2, N2 adsorption properties with the increase of adsorption pressure, make O2, N2 adsorption capacity also increases, and the adsorption of O2, the rate of increase to be larger. PSA cycle is short, O2, N2 adsorption far from equilibrium, so the O2, N2 diffusion rate difference that O2 adsorption capacity in a short time much higher than the adsorption of N2. PSA Nitrogen is the use of carbon molecular sieve adsorption characteristics, the use of pressurized adsorption, desorption decompression cycle, the compressed air alternately into the two adsorption towers (can also be used to complete a single adsorption tower) to achieve air separation, thereby producing a continuous the product of nitrogen.



How does N2 work in such industries - Preserving the quality of oils and fats by preventing oxidation


Oils and fats, and foods with a high oil or fat content, are susceptible to deterioration through oxidation. The objective here is to preserve quality by avoiding oxidation.


Oxidation refers to a chemical reaction where atmospheric oxygen attacks the fat acid chains of triglyceride molecules. The oxygen attack can take place at ambient temperatures or below (i.e. during normal storage of oils or finished food products). It can also occur at elevated temperatures, such as during processing or deep-fat frying.

In order to protect the oil and improve oil stability, oxygen should never come in contact with the product - at any stage of the production process. In line with the worldwide trend towards the replacement of harsh physical/chemical preservative methods with less severe alternatives, the food industry is increasingly relying on nitrogen to resolve the oxidation challenge.

Oxygen Nitrogen

Nitrogen is a chemical element. Because it is an inert gas, it does not interact directly with the product. It is used to displace atmospheric air (and thus oxygen) and water vapor to avoid oxidation. There are two main processes for replacing oxygen with nitrogen: sparging to remove the dissolved oxygen; and blanketing to assure the absence of oxygen in the headspaces.


Drawing on our deep understanding of both quality and safety requirements, we have developed a range of inerting and other solutions to stabilize oil and fat products at all processing stages.

Application highlights

  • Purging & sparging with N2 to remove dissolved oxygen

  • Blanketing to remove oxygen in the headspace

  • Nitrogen to prolong shelf life and increase stability by modifying physical properties. 

Product Uses PSA N2
IndustryApplicationPurity (%)
Petrol chemicalPVC99.95
Benzene anhydride99
Petroleum and gasStorage, transportation, pipe cleaning97
Tire manufactureSulfuration99.99
Tire inflation95-99
Food and beverageFilling and sealing99-99.5
Beverage stirring99-99.6
Sauce/jam packing99-99.5
Edible oil99-99.5
Milk powder packaging99.9-99.99
Snack packaging99-99.5
ElectronicsDiode manufacture99.999
Transistor manufacture99.999
Process protection99.99-99.995
Heat treatmentProcess protection99.99-99.999
PharmacyAmpoule sealing99.99
Material transportation99.9
Vessel/tank inerting99
Quality protection99
Inert protection99.9-99.99
BiofuelInert protection99.5-99.9
FertilizerRaw material99.999 
Coal mineFire proof99
MetallurgeContinuous casting99.99
Powder metallurge99.9
Magnetic material sintering99.995
Steel manufacture99.99
PlasticsPlastic granule transportation99
Plastic manufacture process99
ChemicalTank/vessel/duct purging99
Rubber packaging/storage99
Oil and greaseTank sealing99.5
Duct/vessel purging99.5
Oil transportion99.5
Reaction vessel inerting99.5
Float glassProcess protection99.9995
New materialProcess protection98

* High Reliability

Proven PSA technology, simple engineering design, few moving parts and international standardized manufacturing techniques ensure minimal maintenance and maximum reliability. 

* Low Cost

   Patented REFLUX high-efficiency control system reduces air consumption, saves electric power.

* Convenience

   Unattended operation controlled by PLC automatically. Optional touch screen CANBUS control, display and alarm system makes all the generation system to be operated by 

one touch. 

CANBUS displays working parameters, reminds filter elements replacing and instructs trouble shooting. 

* Easy Installation

   Skid mounted for easy installation and move.

* Longer Service-life

   Exclusive bed containment system extends Zeolite/Carbon Molecular Sieve (Z/CMS) bed life to more than 10 years.

* Minimal Maintenance

   The generator has highly-reliable valves and no other moving parts. Filter elements are easily replaced.

* More reliable
   CANGAS standardized air separation systems based on proven state of the art technologies in history of many years application in fields. 

   Simplified engineering design idea with much less moving parts, guarantees maximumreliability and minimal maintenance.

* More economical
   More advanced and more economical air separation membrane modules. 
   REFLUX composition control system reduces air consumption capacity, saves energy cost.
   Patented Energy Efficiency System (EES) enables CANGAS systems to produce product gases based on actual demand. 

* More convenient
   CANBUS multi monitoring and control system enables parameters of capacity, purity, and pressure of product gases online display on panel screen, gives running problem alarm, and reminds of maintenance. 

   Turn-key solution and pre-commissioned. 
   Skid mounted design, easy installation.

* Plug and play with smart control.

* Proven design with reliable parts.

* CE, ISO, ASME, UL, BV, GHOST, GC3 certificated.

* Leader in the market with 20 years of experience.

* Have exported more than 1000 sets of PSA O2/N2 units to more 70 countries.

* Turn-key design with easy control, simple installation and easy operation.

* Low maintenance with super long service life.

* Could be containerized for easy installation, transportation and relocating.

* High efficiency: ONLY 0.5kw·h for 1m³ N2 production and 0.8kw·h for O2. 

* 18 months warranty.

* Full Automation

   All systems are designed for un-attended operation and automatic Oxygen/Nitrogen demand adjustment.

* Lower Space Requirement/Small footprint

   The design and Instrumentation makes the plant size very compact, assembly on skids, prefabricated and supplied from factory. 

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