Membrane nitrogen generators are widely used in both laboratory and industrial applications. For example, in the laboratory, instruments such as liquid chromatography-mass spectrometry and gas chromatography require the use of nitrogen as a carrier gas or protective gas; In industrial applications, nitrogen generators can be used in fields such as electronics, materials, food, and medicine to provide high-purity nitrogen gas.

The working principle of a membrane nitrogen generator is to achieve gas separation by utilizing the differences in dissolution and diffusion coefficients of different gases in the membrane. Specifically, the membrane nitrogen generator utilizes the selective permeation ability of polymer membranes to separate nitrogen and oxygen from the air. Gas molecules are first adsorbed and dissolved on the high-pressure side surface of the membrane, then diffuse through a concentration gradient in the membrane, and finally resolve on the low-pressure side of the membrane. Due to the faster passage of small molecules and molecules with stronger polarity through the membrane, while the slower passage of large molecules and molecules with weaker polarity through the membrane, membrane separation technology can effectively separate nitrogen and oxygen.

Main advantages of membrane nitrogen generator

• Simple equipment: Membrane separation technology does not require complex process flows and equipment, and has low operating and maintenance costs.

• Easy to operate: No regeneration process required, simple and convenient to operate.

• No phase change: There is no phase change during the separation process, resulting in lower energy consumption.