Water absorption rate of molecular sieve
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I recently communicated with a manufacturer and learned that when designing molecular sieves, the dehydration of 3A and 4A is generally calculated using a water absorption rate of 8%?
Is the adsorption of water by molecular sieve irreversible?
It depends on the quality of the product you want. The product requires moisture content.
Everyone above has misunderstood. I mean the factory said that the molecular sieve cannot be calculated based on the dynamic water absorption rate of 20% during operation. Why? Not the moisture content of the product.
When the molecular sieve is close to the saturated water absorption rate of 20%, it means that the adsorption front has reached the outlet, that is, penetrated the bed, and has lost its adsorption and dehydration ability, making it impossible to guarantee the residual moisture index of the treated material. Therefore, when designing the plan, the bed volume or filling amount is generally determined based on the water absorption rate of about 10%. The manufacturer's calculation of 8% leaves a certain margin for itself when the residual moisture index requirements of the treated materials are more stringent.