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The difference of molecular sieve and activated alumina

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The difference of molecular sieve and activated alumina
Latest company news about The difference of molecular sieve and activated alumina

The difference of molecular sieve and activated alumina

How to use molecular sieve and activated alumina?

What is activated alumina desiccant and molecular sieve?

1. The basic difference of activated alumina and molecular sieve:

 

Zeolite/Molecular sieve has a strong absorbent capacity which is used to purify the gas but avoiding direct exposure in the air. Regeneration should be done based on long storage time(The common shelf time is 1 year). Molecular sieve avoids contacting with oil and liquid water.

Activated Alumina ball is mainly used in chemical, metallurgy, electronics, oil and other industrial gas dehydration and drying, such as air, oxygen, nitrogen and other permanent gas, refining and gas oil cracking gases. Xi'an lvneng  activated alumina ball has a strong affinity for water. UWhen soaking in water, it will be not soft, not inflated, not powder, and other advantages.

 

2. Could we use molecular sieve and activated alumina together?

 

Generally, people thought molecular sieve and activated alumina desiccant couldn’t be used together. The fact is it, really? Because the molecular sieve and activated alumina sorbent all belong to the industry adsorbent and their adsorption mechanism are the same, in gas-liquid adsorption, molecular sieve and activated alumina generally used together. Activated alumina generally divided in the lower part of the purification to do pretreatment, and molecular sieve do the final adsorption and purification. Activated Alumina ball is mainly used in chemical, metallurgy, electronics, oil and other industrial gases such as dehydration dry air, oxygen, nitrogen and other permanent gases smelting gas and petroleum cracking gas. Molecular sieve is SiO2 / Al2O3 ratio of composition, which is a class of highly efficient adsorbents, and its surface has a high acid concentration and acid strength. When the composition of metal ions and other ions in solution are exchanged, adjust the aperture to change its adsorption properties and catalytic properties of zeolite catalysts thus prepared different properties. So molecular sieve and activated alumina could play the adsorptive role better. Xi'an lvneng  produces high quality activated alumina and molecule.

 

3. The different characteristics of Molecular sieve and activated alumina ball:

 

Activated alumina: white spherical activated alumina, unique structure, a strong affinity with the active ingredient, uniform pore distribution, pore size suitable, large pore volume and water absorption, high bulk density, good mechanical properties. It could be used for desiccant, catalyst carrier, fluoride agents, pressure swing adsorbent, hydrogen peroxide dedicated regeneration agent.

Molecular sieve has a great specific surface area of 300 ~ 1000m2 / g. As a class of highly efficient adsorbents, the surface has a high acid concentration and acid strength, which can lead to the positive catalytic reaction of carbon ion type. when the composition of metal ions and other ions in solution are exchanged, which adjust the aperture to change its adsorption properties and catalytic properties of zeolite catalysts thus prepared different properties.

Pub Time : 2018-07-17 11:54:42 >> News list
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