Product Description
Activated Alumina Beads for Drying are high-performance adsorption and drying materials made from high-purity alumina through a special activation process. They feature a large specific surface area, well-developed pore structure, high adsorption capacity, high compressive strength, and long service life. These products are widely used in compressed air drying, industrial gas dehydration, PSA oxygen and nitrogen production, natural gas purification, petrochemical drying systems, and deep dehumidification.
Our activated alumina is manufactured using a special process and is suitable for drying liquids and gases. Although all molecules are absorbed to some extent by the alumina spheres during the drying process of liquids and gases, their strong polarity allows for selective adsorption. Gas pressure, concentration, molecular weight, temperature, and other gas mixtures all affect the adsorption efficiency.
Product Features
· High moisture absorption
· High strength, not easily pulverized
· Recyclable
· Good acid and alkali resistance
· Long service life
Product Application
· Compressed Air Drying
Widely used in refrigerated dryers, desiccant dryers, and air compression systems to remove water vapor and moisture from the air.
· PSA Oxygen and Nitrogen Generation Systems
Used for air pretreatment in PSA oxygen and nitrogen generation equipment to protect molecular sieves and improve system stability.
· Natural Gas and Industrial Gas Dehydration
Suitable for deep dehydration of industrial gases such as natural gas, hydrogen, nitrogen, oxygen, and carbon dioxide.
· Petrochemical Industry
Used in petrochemical gas purification, catalyst protection, and adsorption drying systems.
Product Parameters
|
Chemical content(wt%) |
|||||
|
AL2O3 |
93.5 |
||||
|
SiO2 |
0.02 |
||||
|
Fe2O3 |
0.02 |
||||
|
Na2O |
0.3 |
||||
|
L.O.I(300-1000℃) |
4-6 |
||||
|
Physical |
1/8′ (3-5mm) |
3/16′ (4-6mm) |
1/4′ (5-7mm) |
6-8mm |
8-10mm |
|
Specific surface area(m2/g) |
320-350 |
320-350 |
320-350 |
300-350 |
280-310 |
|
Pore(cc/g) |
0.42-0.5 |
0.42-0.5 |
0.42-0.5 |
0.4-0.5 |
0.4-0.45 |
|
Bulk density(g/cm3) |
≥0.75 |
≥0.75 |
≥0.75 |
≥0.70 |
≥0.68 |
|
Compressive strength(N/sphere) |
≥150 |
≥210 |
≥300 |
≥400 |
≥500 |
|
Wear rate(wt%) |
＜0.1 |
＜0.1 |
＜0.1 |
＜0.1 |
＜0.1 |
Activated Alumina Beads for Drying
FAQ
Q:Can Activated Alumina Beads be reused?
A:Yes. Activated alumina drying beads support heat regeneration and can be recycled multiple times, reducing replacement costs.
Q:How to choose the appropriate particle size?
A:Different equipment has different requirements for pressure drop and adsorption efficiency. Common sizes are 3-5mm and 4-6mm, which can be recommended based on the operating conditions.
Q:What is the difference between activated alumina and molecular sieves?
A:Activated alumina is more suitable for conventional drying and pretreatment conditions, with advantages of low cost and high strength; molecular sieves are suitable for deep dehydration at lower dew points.
Q:What gases is the product suitable for?
A:Suitable for drying various industrial gases such as air, natural gas, nitrogen, oxygen, hydrogen, and carbon dioxide.
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