As an air separation equipment, a nitrogen generator can separate high-purity nitrogen gas from the air. According to the characteristic that nitrogen is an inert gas, people often use it as a protective gas. In a high-purity nitrogen environment, nitrogen can effectively prevent oxidation from occurring. There are several types of industries or fields that require or utilize their chemical stability:;

1. Coal mining and storage

When a fire occurs in the oxidation area of the goaf in a coal mine, the biggest disaster is the explosion of the internal mixed gas. Filling with nitrogen can control the oxygen content in the mixed gas to below 12%, which can suppress the probability of explosion and prevent coal spontaneous combustion, making the working environment safer.

2. Oil and gas extraction

Nitrogen is a standard gas used to re pressurize oil and gas from wells/natural gas reservoirs. Utilizing the inherent characteristics of nitrogen to maintain reservoir pressure, mixed phase and immiscible oil displacement and gravity drainage technologies can greatly improve oil recovery rates, which is also of great significance for stabilizing oil production and increasing oil production.

3. Petroleum and Petrochemical

According to the characteristics of inert gases, nitrogen can establish an inert atmosphere during the processing, storage, and transfer of flammable materials, eliminating the displacement of harmful toxic and flammable gases.

4. Chemical industry

Nitrogen is an important raw material for synthetic fibers (nylon, acrylic acid), synthetic resins, synthetic rubber, etc. Nitrogen can also be used to manufacture fertilizers, such as ammonia bicarbonate, ammonium chloride, etc.

5. Pharmaceutical

In the pharmaceutical industry, nitrogen filling process can effectively improve the quality of drugs, whether it is infusion, water injection, powder injection, freeze-drying machine, or oral liquid production,

6. Electronics, power, cables

Nitrogen filled bulb. Fill the bulb with nitrogen to prevent tungsten wire oxidation and slow down the evaporation rate of the tungsten wire, thereby extending the lifespan of the bulb.

7. Edible fats and oils

A nitrogen filled oil reservoir is a device that charges nitrogen into a storage tank and expels air from the tank to prevent oxidation of the oil, thereby ensuring the safe storage of grease. The higher the nitrogen content and the lower the oxygen content, the more favorable it is for dry storage. It can be said that nitrogen content has a significant impact on the storage of edible oils and fats.

8. Food and Beverages

Grains, canned goods, fruits, beverages, etc. are usually packaged with nitrogen gas for convenient storage to prevent corrosion.

9. Plastic chemical industry

Introducing nitrogen into the molding and cooling process of plastic parts, using nitrogen to reduce deformation caused by pressure on the plastic parts, thereby obtaining stable and accurate plastic part dimensions. The use of nitrogen injection molding can improve the quality and design flexibility of injection molded products. According to different process conditions, the nitrogen purity required for plastic injection molding varies. So it is not suitable to use bottle nitrogen, it is best to use an on-site pressure swing adsorption nitrogen generator to directly supply nitrogen.

10. Rubber and resin production

The rubber nitrogen vulcanization process involves adding nitrogen gas as a protective gas during the rubber vulcanization process.

11. Production of automotive tires

Filling tires with nitrogen can improve the stability and comfort of tire driving, prevent punctures, and extend tire life. The audio conductivity of nitrogen is poor, and using nitrogen can reduce tire noise and improve driving comfort.

12. Metallurgy and heat treatment

Protective gases for continuous casting, rolling, and steel annealing: the top and bottom of the converter comply with nitrogen blowing for steelmaking, the sealing of the converter for steelmaking, the sealing of the blast furnace top, and the use of gas for coal powder injection in blast furnace ironmaking.

13. New materials

Nitrogen protection for heat treatment of new materials and composite materials.

14. Aviation and aerospace

Normal temperature nitrogen is used to protect aircraft, rocket and other components from explosion, rocket fuel booster, launch pad ventilation and safety protection gas, astronaut control gas, space simulation room, cleaning gas for aircraft fuel pipelines, etc.

15. Biofuels

For example, when using corn to produce ethanol, nitrogen protection is required.

16. Fruit and vegetable storage

Commercially, modified atmosphere storage of fruits and vegetables has a development history of over 70 years worldwide. Nitrogen is a more advanced facility for preserving fruits and vegetables. After being processed in a controlled atmosphere storage, fruits and vegetables can improve their freshness, extend their shelf life, and meet all pollution-free standards for green storage.

17. Grain storage

In the storage of grains, introducing nitrogen gas can prevent the grains from being affected by microbial, insect activity, or the respiration of the grains themselves and causing them to rot. Nitrogen can not only reduce the oxygen content in the air, disrupt the physiological activities of microorganisms and the living environment of insects, but also inhibit the respiration of food itself.

18. Laser cutting

Laser cutting of stainless steel using nitrogen can prevent the welded area from being oxidized by oxygen when exposed to air, and also prevent the occurrence of porosity in the weld seam.

19. Welding protection

When welding metal, nitrogen can be used to protect the metal from oxidation.

20. Protecting historical relics

In museums, it is common to fill precious and rare painting pages and books with nitrogen, which can prevent mites from surviving. Thus achieving the function of protecting ancient books.

21. Fire prevention and extinguishing

Nitrogen does not have a combustion promoting effect. Injecting an appropriate amount of nitrogen can have a fire prevention and extinguishing effect.

22. Medicine and Beauty

Nitrogen can be applied in surgery, low-temperature cryotherapy, blood refrigeration, drug freezing, and low-temperature pulverization, for example, as a refrigerant in hospitals for plaque removal, packaging, and other surgeries.

With the progress of science and technology and the development of economic construction, the application range of nitrogen is becoming increasingly widespread and has penetrated into many industrial enterprises and daily life fields. With the maturity of pressure swing adsorption nitrogen generator technology, on-site nitrogen production by nitrogen generators is more economical and convenient than other nitrogen supply methods.