Glass tray filled with Activated Alumina Desiccant
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Activated Alumina is a highly porous form of aluminium oxide. It has various chemical and physical properties, making it an ideal choice for various industrial applications. This desiccant can absorb both water and gases and has high thermal stability. It can purify gases and liquids, removing impurities like fluoride, arsenic, and selenium.

Non-Toxic and Eco-Friendly

Activated alumina operates effectively in dry and liquid environments, making it versatile for different processes. Its large surface area allows it to adsorb a significant amount of water, which is particularly useful in air-drying applications.

In addition, it’s used to dehydrate organic liquids such as LPG, propylene, butane, and aromatic solvents. An advantage of this desiccant is its proficiency in dew point control. Its significant water adsorption ability, mechanical strength, and minimal attrition loss can achieve dew points as low as -40 °C and potentially even -70°C or below in high-pressure conditions.

Effective Desiccant with High Porosity

Due to its high mechanical strength, activated alumina remains physically stable under high-pressure conditions and can easily regenerate. This property makes it a cost-effective and long-lasting solution in industrial operations. It’s also non-toxic and environmentally friendly, ensuring safe handling and disposal.

We supply activated alumina in beads or spheres, which can vary in size according to specific application requirements. These beads are highly resistant to abrasion and maintain their form in high-flow environments, preventing crushing and dust formation.

Use in Vacuum Systems:

  • Employed in fore-line traps of vacuum systems to prevent back streaming of oil from rotary vane pumps.

Catalyst in Production Processes:

  • Utilized as a catalyst adsorbent in manufacturing hydrogen peroxide and polyethylene.
  • Acts as a selective adsorbent in the Claus Catalyst process, removing impurities like Arsenic, Fluoride, and Sulfur from gas streams.

Regeneration and Temperature Considerations:

  • Can be regenerated to full adsorptive capacity by heating between 150°C and 180°C.
  • Higher regeneration temperatures lead to longer operating cycles and lower exit dew points for the gas.
  • Important to avoid exposure to temperatures above 350°C to maintain long-term performance.

Fluoride Adsorption in Water Treatment:

  • Effective in reducing fluoride levels in drinking water, from 10.0 ppm to less than 1.0 ppm.
  • Fluoride removal efficiency depends on the contact duration between water and alumina filter media.
  • Increasing the alumina amount in the filter improves fluoride removal.
  • Lower water temperatures and reduced pH levels enhance filtering efficiency.
  • Optimal fluoride removal (up to 95%) is achieved at a pH level of around 5.5

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