Nitrogen is the most commonly used inert gas, low in price, easy to manufacture and non-toxic. It is commonly used in the laboratory for chromatographic carrier gas, purging, protection, etc. Industrial nitrogen generators are divided into three according to the principle, one is electrochemical nitrogen production. The other is membrane separation and nitrogen production, and the other is pressure swing adsorption nitrogen production.
The electrochemical nitrogen production of Industry Nitrogen Generator is to pass high-pressure air into the cathode of the hydrogen electrolysis cell. Under the action of the catalyst, hydrogen and oxygen form a micro fuel cell to complete the redox reaction to produce water. The macroscopic performance is oxygen in the air. It was removed and nitrogen remained. This method can produce up to 99.995% nitrogen.
The membrane separation and nitrogen production of the Industry Nitrogen Generator is that the high-pressure air passes through the hollow fiber membrane module, and the diffusion speed difference between the nitrogen molecules and the oxygen molecules is accumulated, and high-purity nitrogen is formed at the output end of the membrane module, and the finally formed product gas has the highest purity. Up to 99%, the gas flow rate is >5000ml/min, and can be used cumulatively without affecting the quality of the product. The gas device can be expanded indefinitely without considering other restrictions.
The pressure swing adsorption nitrogen production mainly utilizes the difference in adsorption capacity of nitrogen gas and other gas molecules in the molecular sieve to form a concentration difference accumulation, and produces high purity nitrogen gas at the end of the molecular sieve column. In practical applications, the user should select a suitable industrial nitrogen generator according to actual needs.