Activated Alumina Balls Description

 

Activated Alumina balls has a higher capacity to absorb water than silica gel because surface area of inert alumina ball is in the range of 345-415 m2/gm at elevated temperatures. Alumina balls are mainly used as a desiccant for warm gases including air and water fluoride removal. In many commercial applications zeolite materials have now replaced it.

 

Technical Parameter:

 

GRADES

ACTIVATED ALUMINA BALLS

 

Shape                         Spheres / Balls

Sizes in mm                   1-3, 2-5, 3-5, 5-8, 8-10

Bulk density  (gm / lit)                             0.700 - 0.800

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 (kgf / cm2)                                     8-12

LOI (300oC-1000oC)                                      6-8

Al2O3 (By difference)                                    Min 94

Applications:

 

 Drying of organic liquids such as LPG, propylene, butene, steam cracked liquids, gasoline and fluorinated hydrocarbons, aromatic solvents

 Drying of industrial gases including steam cracked gases, catalytic reforming recycle gas, synthesis gas, methyl chloride, LNG, etc.

 Drying of natural gases such as hydrogen, oxygen, nitrogen, carbon dioxide

 Purification of gases and liquids (removal of metallic traces, BF3, TBC, HCl, HF)

 Catalyst for claus conversion in sub dew point processes

 Industrial air drying (including instrumental air, supersonic wind tunnel, compressed air, heated and heatless air)

 Fluoride and arsenic remove from water

 Tower packaging