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Description

Activated Alumina is an aluminium oxide that is "highly porous" and exhibits tremendous surface area. Activated Alumina is resistant to thermal shock and abrasion and will not shrink, swell, soften nor disintegrate when immersed in water.

1-3 mm alumina 2-5 mm alumina 5-8 mm alumina

Surface area are in the range 345-415 m²/gm . Because it has a higher capacity for water than Silica Gel at elevated temperatures it is mainly used as a desiccant for warm gases including air. In many commercial applications zeolitic materials have now replaced it.

Technical Parameter:

GRADES

                        SORB- I
                     ( Instrument Air Drying Grade )

Shape

                             Sphere / Balls

Sizes in mm

                             5-8 / 2-5 /3-5

Bulk density (Kg. / m³)

                           650-800

BET 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

                            NMT 0.5

Fe₂O₃

                            NMT 0.05

SiO₂

                           NMT 0.10

Crushing Strength %

                         97

LOI (300^oC-1000^oC)

                          6-8

Al₂O₃ (By difference)

                         MIN 94

Applications :

Purification of gases and liquids (removal of metallic traces, TBC and HF compounds).
Drying of organic liquids such as LPG, propylene, butene, steam cracked liquids, cyclohexane, gasoline, chloro- and fluorohydrocarbons, aromatic solvents.
Drying of air and gases such as steam cracked gases, catalytic reforming recycle gas, synthesis gas, natural gas, CO_2.
Drying of organic liquids as LPG, aromatics, steam cracked liquids, gasoline, chloro- and fluorocarbons.
Drying of air and gases as steam cracked gases, catalytic reforming recycle gases, synthesis gases, methyl chloride, natural gas, LNG, etc.
Drying of hydrogen, oxygen, nitrogen, CO_2, etc.
Purification of gases and liquids (removal of metallic traces, BF3, TBC, HCl, HF and fluorinated hydrocarbons).
Catalyst for Claus conversion in sub dew point processes.
Air drying (PSA, TSA).
Instrument air, supersonic wind tunnel, compressed air.
Gas drying Air separation plants, inert and rare gases, Hydrogen, oxygen, nitrogen, CO₂.
Natural gas in production and compression plants, LPG, LNG.
Aromatics, naphtha cuts and cracked gas.