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What is the difference between activated alumina and molecular sieve?


  • Different features :

  1. Activated alumina is a white spherical substance, produced by a special process. Because of its unique skeleton structure, it has a strong affinity with active components. The product has a uniform micropore distribution, a suitable pore size, and a large pore volume. High, low bulk density, good mechanical properties, and good stability.

  2. The molecular sieve has a large specific surface area of ​​300~1000m2/g, and the inner crystal surface is highly polarized. It is a kind of high efficiency adsorbent and a kind of solid acid. The surface has a high acid concentration and acid strength, which can cause Catalytic catalytic reaction. When the metal ions in the composition are exchanged with other ions in the solution, the pore size can be adjusted to change its adsorption and catalytic properties, thereby preparing molecular sieve catalysts with different properties.


  • The difference between activated alumina and molecular sieve lies in different applications:

  1. Activated alumina is mainly used for the dehydration and drying of industrial gases such as chemical, metallurgy, electronics, petroleum, etc., such as air, oxygen, nitrogen and other gases, smelting gas and petroleum cracking gas, etc.

  2. Molecular sieve has strong moisture absorption capacity and is used for gas purification treatment. Avoid direct exposure to the air during storage. Molecular sieves that have been stored for a long time and have absorbed moisture should be regenerated before use. Molecular sieve avoids oil and liquid water. Avoid contact with oil and liquid water when using it.

  • Knowing the difference between activated alumina and molecular sieves, we can better choose and use them. Both products have their advantages and functions, so we can choose them according to our needs.

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