Nicho Company Limited
Activated alumina
Drying Agent
Sulfur Recover Catalyst (Claus Catalyst)
Activated alumina is consisting of many micro-pores,  specific surface is large. It can be used as adsorbent and desiccant. Some type can be used for removal of sulfur.  It is also a desiccant   to adsorb polar molecule.  Attachment force is strong for water, oxide, acetic acid, alkali etc.

Activated alumina
can remove fluorine and stronger than ion exchange resin. It is stable and capable to adsorb fluorine 6400g/cm3. It has high strength, low abrasion, no expansion.

Activated alumina
can be used in drying of cracked gas, ethylene and propylene, hydrogen-generation, air separation, instrument air drying and fluorine treatment for H2O2, also in the absorbing pollution material, such as H2S, SO2, HF and paraffin


Physical Properties

Item

Al2O3


%

Size


mm

Bulk density

g/cm²

Surface area


m²/g

Pore space

 
ml/g

Water adsorption

%

Crushing strength

N
Activated Alumina Desiccant

90-95

Ø3-5

>0.75
>350
>0.38
>19
>80

Ø4-6

>0.72
>350
>0.38
>19
>120

Ø4-8

>0.72
>350
>0.38
>19
>130

Ø5-7

>0.72
>350
>0.38
>19
>130

Ø2-6

>0.75
>350
>0.40
>20
>80

Ø5-7

>0.72
>350
>0.40
>19
>120
Activated Alumina Defluoridizer

Ø2-3

>0.74
>350
>0.38
>20
>45

Ø1-2.5

>0.74
>350
>0.38
>19
>38
Ø0.5-2
>0.74
>350
>0.38
>19
>20
Sulfur Recovery Catalyst (Claus Catalyst)
95
Ø4-6
>0.70
>350
0.4-0.5
>20
125