Modern SMN Nitrogen Membrane Systems
Air separation equipment is a gas separation equipment that liquefies, distills, and finally separates air into oxygen, nitrogen, and other useful gases. It is referred to as air separation equipment. Its minimum operating temperature is 77K. At the end of the 19th century, air was still called "permanent gas". Later, people found that air could also be liquefied at deep low temperatures, and because of the different boiling points of oxygen and nitrogen, oxygen and nitrogen could be separated from liquefied air. The first commercial oxygen generator was made in 1903. It was originally used for gas welding and cutting of metals. The nitrogen fertilizer industry needs nitrogen, and the oxygen generator has developed to be able to produce oxygen and nitrogen at the same time, and was renamed air separation equipment.
The SMN nitrogen membrane system is an air separation device. The SMN nitrogen membrane system consists of an air compressor, a filter and an SMN membrane separation nitrogen generator. Compressed air enters the SMN membrane separation nitrogen generator through the filter. Oxygen, water vapor and a small amount of CO2 in the air quickly penetrate the membrane and enter the other side of the membrane to be enriched; the nitrogen permeates the membrane at a relatively slow rate and remains on the membrane retention side to be enriched. The outlet pressure of the enriched nitrogen is almost the same as the pressure when the compressed air enters the membrane system, and the power loss is very small. Using the air separation equipment-SMN nitrogen membrane system, the nitrogen in the air can be increased from 78% to more than 95%, and the highest pure nitrogen can be 99.9%. If the user wants a higher purity N2, chemical catalytic de-O2 can be configured to obtain high-purity nitrogen with a purity of up to 99.9995%.
FAQ
1. What is an Air Separation Unit (ASU)?
An ASU is an industrial system designed to separate atmospheric air into its primary components-nitrogen, oxygen, and argon. It operates by using distillation and refrigeration processes to purify and extract these gases in high concentrations.
2. How does the SMN membrane system work to separate nitrogen?
In the SMN system, compressed air is introduced to a special membrane. This membrane selectively allows oxygen, water vapor, and CO₂ to permeate through to the other side, while nitrogen permeates much more slowly, resulting in nitrogen-enriched air on the retention side of the membrane.
3.What components make up the SMN nitrogen membrane system?
The SMN nitrogen membrane system includes:
Air Compressor: Compresses air to the required pressure level.
Filter: Removes impurities from the compressed air.
SMN Membrane Separation Nitrogen Generator: Separates oxygen and other impurities from nitrogen using selective permeation.
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