Nitrogen As we all know, the air we breathe contains nitrogen, nitrogen is usually a colorless and odorless gas, and generally nitrogen is less dense than air, nitrogen accounts for 78.12% of the total atmosphere, is the main component of air. 

The chemical properties of nitrogen are not active, and it is difficult to react with other substances at room temperature, but it can undergo chemical changes with some substances under high temperature and high energy conditions, so it is often used to make new substances useful to humans. The application range of nitrogen is very wide, we can often see the figure of nitrogen products in life, such as the puffed food we often eat, it is full of nitrogen, nitrogen not only inhibits the growth of microorganisms in food, but also acts as a shock-proof work, and the chemical properties of nitrogen are not lively and easy to make cheap. 
So how is nitrogen made? Nitrogen machine, but it is made with a nitrogen mechanism, nitrogen machine uses air as a raw material, the use of physical methods to separate oxygen and nitrogen, so as to obtain nitrogen. According to different classification methods, namely cryogenic air separation method, molecular sieve air separation method (PSA) and membrane air separation method. 

The nitrogen production function is suitable for many industries, such as the oil and gas industry, in the oil and gas mining, nitrogen protection oil production, with high safety, strong adaptation, continuous production characteristics, in addition, the chemical industry, metallurgy industry, coal industry, rubber tire industry, pharmaceutical industry, electronics industry and other fields. So almost all industrial industries can use nitrogen machines.