PORESPHERE® Aktiv-AL: For extreme conditions involving thermal and mechanical stress.
High adsorption capacity
Reusable
Chemically stable
Activated alumina reliably absorbs moisture and impurities. It is ideal for air and gas drying and for moisture control in demanding technical processes.
Thermally stable
Mechanically robust
Hard, shatterproof, low abrasion, low dust
High water adsorption
Up to 25% of its own weight at moderate relative humidity
Regenerable
Often more than 1,000 cycles without any loss of performance or capacity
HF, HCl, SO₂ adsorption
Adsorbs not only water but also acidic gases
Strong performance for tough conditions
When aluminum hydroxide powder is heated so strongly that all moisture is driven off, activated aluminum oxide is produced, resulting in a very special drying agent. Pressed into granules, small spheres are formed that develop countless tiny pores on their surface, where water molecules can attach.
Its unique feature: Due to the heating process, they are extremely robust against high process temperatures and mechanical stresses. Nevertheless, they still maintain good adsorption performance and can absorb up to 25% of their own weight in water at moderate humidity.
Its robustness makes the drying agent ideal for use in compressed air dryers, in gas processing, or in PSA plants for oxygen processing.
Technical data.
PORESPHERE® Aktiv-AL
Good adsorption performance
For demanding processes
- Composition 92.8% Al2O3 / 0.32% Na2O / 0.03% Fe2O3 / 0.02% SiO2
- Grain size 3.0 - 5.0mm
- Bulk density 0.68 g/ml
- Specific surface area 240 m²/g
- Crushing strength 90 N/piece
- Loss on ignition ~6 %
- Regeneration capacity 15 g/l
- Water adsorption >30 %
PORESPHERE® Aktiv-AL K8
Impregnated with potassium permanganate
Suitable for ethylene and formaldehyde adsorption
- Composition 60,7% Al2O3 / 8,3% KMnO4
- Grain size 3.0 - 5.0mm
- Bulk density 0,96 g/ml
- Specific surface area 280 m²/g
- Crushing strength 101 N/piece
PORESPHERE® Aktiv-AL Pulver
High-purity adsorbent for air separation and chemical processes
Applications.
Request technical consultation now.
Marco Kolbus
Sales and Product Manager
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FAQ - your questions, answered.
Yes, activated alumina physically adsorbs molecules. Heating the granules to 200–220 °C for 2–4 hours reverses this process and regenerates the material.