The role of molecular sieves in air purification
2025-06-13
In the air purification stage of air separation equipment, the role of molecular sieves is crucial. Air contains water vapor, carbon dioxide, and other impurities, which affect the operating efficiency and product purity of the air separation equipment. Molecular sieves ensure that the air entering the separation system is pure by selectively adsorbing these impurities. The specific roles of molecular sieves in air purification are as follows:
Adsorbing moisture: Water vapor in the air can condense into ice in low-temperature environments, blocking the channels of heat exchangers and separation equipment. Molecular sieves prevent ice formation by adsorbing moisture from the air.
Removing carbon dioxide: Carbon dioxide forms dry ice at low temperatures, which can also damage the equipment. Molecular sieves can effectively remove carbon dioxide from the air, ensuring the normal operation of the equipment.
Removing impurities: Air may also contain some hydrocarbons and other impurities, which affect the purity of oxygen, nitrogen, and argon. Molecular sieves ensure the production of high-purity gases through selective adsorption.
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