Activated Alumina Balls

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

Surface area is in the range 345-415. 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.

Formula:

Al2O3

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

Application:

  • 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, CO2.
  • 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, CO2, 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.

Packing:

25 kg. Airtight Paper Plastic Bag.

Attention:

  • Donít unpack the product before use, in order to avoid moisture adsorption and efficiency decrease of use
  • The product is suitable for deep drying with the pressure over 5kg/cm2
  • The adsorptivity ability will decrease gradually with the product used after a certain time, in order to use it repeatedly the product should be regenerated to remove the adsorption moisture. The gases used for the regeneration should be:

(a) The dried gas with lower or same operating pressure of drying operation;
(b) The dried gas with higher or same temperature of drying operation;
(c) Wet gas after rising temperature;
(d) Wet gas after reducing pressure