Activated Alumina Desiccants
Activated alumina is highly porous material, this material can have a surface area significantly over 200 square metres/g. Very suitable for use as a filter of fluoride, arsenic and selenium in drinking water
CAS no Activated Alumina : 1344-28-1
Technical Parameter:
| GRADE | (Instrument - Air Drying Grade) |
| From | Beads |
| Size (mm or mic) | 5-8 / 3-5 |
| Bulk density (gm/lit) | 0.75-0.85 |
| Surface area (m2 / gm) | 345-415 |
| Pore Volume (cc/gm) | 0.40-0.50 |
| Adsorption Capacity (60 % RH) | 21.5 |
| Attrition Loss (%) | 0.2 |
| Chemical Composition (%) | |
| Na2O | NA |
| Fe2O | NA |
| SiO2 | NA |
| TiO2 | NA |
| Promoter | NA |
| LOI (300C-1000C) | 6-8 |
| Al2O3 (By difference) | 92 min |
Activated Alumina Desiccants:
Activated Alumina Desiccants is a porous form of aluminum oxide. It has a high surface area which adsorbs vapors without any change in form. Activated Alumina Desiccants will not soften or disintegrate easily when immersed in water.
Dew points to -40°F and lower may be achieved with Activated Alumina Desiccants depending on dryer design and operating conditions.
The 1/8” (2-5mm) bead is the size most frequently used in regenerative dryers.
The 3/16” (4-8mm) bead is used when pressure drop and surface area requirements fall between 1/8” and 1/4” material. It is suitable for most systems.
The 1/4” (5-10mm) bead Activated Alumina Desiccants is used both as a pre-bed material to support large desiccant beds or as a buffer for silica gel beads. Pressure drop is slightly lower than 1/8” (25mm) material.
If size is not known or specified, the 1/8” (2-5mm) size is usually satisfactory. However, if Activated Alumina Desiccants is used in a regenerative dryer and the desiccant retaining screens cannot be measured, the 1/4” (5-10mm) size should be used as a bed support (6” layer). If at all possible, obtain a sample and measure it before ordering.
Product Benefits:
- High adsorption capacity. With high surface area and excellent pore distribution, Activated Alumina Desiccants has a high water adsorption capacity. This reduces initial cost, energy consumption and operating costs through smaller bed sizes and/or longer operating cycles.
- Low abrasion. Insures less dusting during tower depressurization or loading. Low abrasion means low pressure drop and a reduced chance of plugging the afterfilter.
- Resists liquid water. Water slugging due to upstream failure of aftercooler, separators or drain traps will not fracture the alumina beads. The adsorption capacity of the desiccant can be restored after complete regeneration.
- High crush strength. High crush strength, which limits dusting, is important during loading of desiccant towers. High crush strength makes alumina effective as a prebed material when used with other types of desiccants.
- Uniform bead sizes. Activated Alumina Desiccants is a uniformly sized bead. It provides low pressure drop to minimize channeling and ensures utilization of the full bed column section.
Physical Properties:
| 1/8” (2-5mm) | 3/16”(4-8mm) | 1/4” (5-10mm) | |
| Color and form | White bead | White bead | White bead |
| Bulk density | 48 lbs/Ft3 | 48 lbs/Ft3 | 48 lbs/Ft3 |
| Crush strength | 17-30 lbs | 145-60 lbs | 50-70 lbs |
| Surface area | 1.74 x 106 sq ft/lb | 1.65 x 106 sq ft/lb | 1.59 x 106 sq ft/lb |
|
Static adsorption Humidity |
- | - | - |
|
100% RH 90% RH 60% RH 10% RH |
42.0% 37.5% 21.0% 7.5% |
40.0% 35.0% 21.0% 7.0% |
36.0% 32.0% 17.5% 6.0% |
Dosage
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Useful Area
Where Activated Alumina is used?
Activated Alumina is widely used as Desiccant Agent/Desulfurization agent, Dechlorination agent/Defluorination agent /Catalyst carrier and so on.
Industrial Usage
Activated Alumina Balls: Activated Alumina is counted in the list of effective adsorbents and desiccants used in several applications for removing moisture and purifying the products.
Activated alumina will never disintegrate, shrink or swell when engrossed in water.
Mainly used for removing “Arsenic & Fluoride Removal” from water and used as an “Air Drying” desiccant.
Molecular Sieves Beads/Pellets: This desiccant can easily remove impurities from many industrial and natural gases, solvents & liquids.
The types of molecular sieves desiccants offered by Sorbead India include 3A, 4A, 5A, and 13X molecular sieves, carbon molecular sieves, and molecular sieve powder, which are available in the form of beads, pellets, and powder.
Carbon Molecular Sieve: Sorbead India offers qualitative carbon molecular sieves, especially for nitrogen generation PSA (Pressure Swing Adsorption) Plants. N2 Purity: 99.99%
Molecular Sieve Powder: Zeolite powder is an excellent moisture scavenger for polyurethane coatings, adhesives, sealants and elastomers. It is in powder form.
Remarks
Activated Alumina compound is used as a desiccant for dry and absorbing moisture water from the air and as a filter of fluoride, arsenic and selenium in drinking water.
Supply Locations
Activated Alumina Desiccants manufacturer supplier distributor in Mumbai, Kandla, Kolkata, Vizag, Chennai, India, Fujairah, Dubai UAE, Muscat Oman, Kenya Africa. Get the best quality of Activated Alumina Desiccants at a competitive price from us. We have ready stock of Activated Alumina Desiccants in India, UAE Gulf, Oman, Kenya Africa. Contact us for bulk as well as small orders.
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