Chemical carriers， gas carriers and reefers need clean， dry nitrogen for inerting， purification and cargo filling. Onboard nitrogen generators are the most efficient way to provide this service. There are two main types of nitrogen generators. One uses hollow fiber membrane technology， and the other is based on a variable pressure absorption (PSA) process. Nitrogen can also be produced by inert gas generators. Molecular sieves remove the carbon dioxide present in the inert gas.

- Membrane Technology - The air we breathe contains approximately 78% nitrogen， 21% oxygen and 1% other gases such as argon and water vapor. Membrane systems utilize this unlimited supply of raw materials to produce nitrogen of a specific purity.

Selective permeation is the general principle of membrane systems. Each gas has a unique permeation rate， which is a function of the ability to dissolve and diffuse through the membrane. The "fast" gases， O2， H2O， CO2， permeate through the membrane wall faster than the "slow" gases， thus separating the original mixture into two streams. The driving force of the separation process is the partial pressure difference， which is created between the compressed inlet side and the low pressure side of the membrane.

The membrane separator consists of a bundle of hollow fibers in a cylindrical housing， arranged much like a shell and tube heat exchanger. Compressed air is fed into the inlet side of the separator and flows inside the hollow fibers to the other end. During this process， air molecules begin to penetrate the fiber walls according to their permeability. Oxygen， carbon dioxide and water vapor permeate faster than nitrogen and the result is a super-dry nitrogen stream at the outlet end. The secondary oxygen-rich stream is vented to the atmosphere.

- PSA type nitrogen generator - A typical PSA based nitrogen plant.

- The variable pressure adsorption (PSA) process consists of two absorption towers filled with carbon molecular sieves. Compressed， purified air passes through the towers and oxygen is absorbed on the carbon molecular sieves while the nitrogen-rich gas leaves the towers. While absorption is taking place in one tower， the second tower is regenerated by returning to ambient pressure and the oxygen-rich gas is discharged from the system.

Advantages of owning a field nitrogen generator (nitrogen generator):

Before using the nitrogen generation system on site, many enterprises in the industry have no choice but to buy nitrogen elsewhere. However, the use of on-site nitrogen generator can eliminate all the troubles related to bulk purchase of nitrogen. Our nitrogen generator is an option with the greatest benefit: the average cost of producing nitrogen by ourselves is one-third to one-half lower than the relevant cost of purchasing nitrogen. Using the on-site nitrogen generator system, there is no need to pay the freight when purchasing nitrogen. Our nitrogen generator system usually allows you to recover the cost within 18 months.

In addition to economy, the nitrogen generator system of the on-site nitrogen generator also provides:

Reliability - the nitrogen generator system, that is, the on-site nitrogen generator system, uses the surrounding air to generate nitrogen. Therefore, our customers never have to worry about the shortage of nitrogen. Reduce stress - improve safety through storage. Simple - we make it easy for people without relevant equipment experience. The visual touch screen control can control the stability of gas purity. At the same time, it can operate self diagnosis, visual operation diagram and maintenance plan reminder on the screen. Flexibility - our equipment is small and can be transported under various conditions, so as long as there is air and electricity, the equipment can operate stably anywhere. Fully automatic - once a downstream request is detected, production begins.

Why use XITE nitrogen generator?   Our nitrogen generator system provides reliable on-site nitrogen supply for various industries, which is famous in China and Southeast Asia. Our on-site nitrogen system can produce nitrogen with purity up to 99.999%. For our nitrogen generator, it can meet the nitrogen production in any place and any complex environment. To learn more about the nitrogen generator system and the practical application demand scheme in your industry, please contact us immediately at + 86 18112526805 (consultant).