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Molecular sieve manufacturer teaches you how to prevent inactivation of molecular sieves

In the process of using molecular sieves, corresponding measures should be taken to prevent molecular sieve deactivation. The following molecular sieve manufacturer will talk about how to prevent molecular sieve deactivation.

1. Strengthen the drainage work: when the concentration of the adsorbent exceeds the standard, it will cause pre-adsorption infiltration, but it will not completely deactivate the molecular sieve, and the activity can be restored through regeneration. During the operation, the drainage work should be strengthened to minimize the water entering the molecular sieve, especially in wet and rainy days, it is also necessary to control the cooling humidity of the compressor at all levels to form and discharge water vapor. As for the amount of hydrocarbons in the atmosphere, it is uncontrollable.

2. Correctly switch molecular sieves: The switching of molecular sieves is the main factor that reduces the mechanical strength and pulverization of molecular sieves. Therefore, when switching, it is necessary to operate correctly and slowly increase or decrease the pressure.

3. Prevent moisture intrusion: This measure is mainly aimed at the air separation plant using steam heaters. The heater should be checked regularly, and the moisture in the regeneration gas should be analyzed regularly with a moisture analyzer. During the annual overhaul, the heater should be decompressed and checked to ensure that the equipment is in good condition to prevent leakage.

4. Strengthen air filtration: Impurities are one of the main reasons for the deactivation of molecular sieves, which are very harmful to the molecular sieves and will completely deactivate the molecular sieves. In order to reduce the pollution of impurities, on the one hand, the oil lubrication of the compressor cylinder can be cancelled. On the other hand, it is necessary to strengthen the air management near the inlet of the air compressor to maintain the cleanliness of the air. At the same time, enough filtering equipment should be installed before the air enters the compressor, and it should be cleaned regularly.

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Add: Yunxi District, Yueyang City, Hunan Province, China