Inert Ceramic Balls having stable chemical features and a low rate of water absorption, Inert Alumina ceramic balls can resist high temperatures and high pressure. Inert Alumina ceramic balls can also resist the corrosion of acid, alkali and some other organic solvents, Inert Alumina ceramic balls are able to stand the thermal shock (quick change of temperature) during the manufacturing process. The main role of these Inert Alumina ceramic balls is to increase the distribution spots of gas or liquid, and to support and protect the activating catalyst of low strength in the reactors and column/tower.
Applications:
As refractory bed top plugs and supports in order to protect the catalyst bed from thermal impurities so that the catalyst bed is kept intact in spite of wide pressure variation. taluminum Ceramic Ball is widely used in petrochemical industry, chemical industry, fertilizer industry, natural gas industry and environment protection, etc.
Stoneware Catalyst Bed Supports are used routinely in the following specific services: Ammonia plants, Hydrotreaters, Bender treaters, Isomerization units, Chloride absorbers, pretreaters and reactors, Claus units, Molecular sieve units, Diesel hydrotreaters, Naphtha treaters, Fixed bed reformers, Reformer pretreaters, Fluidized pollution control, Hydrocrackers (1st stage), VGO pretreaters, Hydrogen plants.
Specification:
Inert aluminum Ceramic Balls are available in several specifications. according to the alumina content percent: 17%25%50%92%. Diameter from 3mm to 60mm or bigger on customer request.
| Size | Density | Free Space | Specific Surface area | |||
|
|
|
|
g/cm3 |
|
|
m2/m3 |
|
|
|
|
1.44 |
|
|
1150 |
|
|
|
|
1.4 |
|
|
520 |
|
|
|
|
1.38 |
|
|
390 |
|
|
|
|
1.38 |
|
|
260 |
|
|
|
|
1.37 |
|
|
160 |
|
|
|
|
1.34 |
|
|
130 |
| Chemical Analysis: | Physical Properties: |
|
SiO2:65%-72% |
Density:2.30-2.45 g/cm3 |
|
Al2O3:>25% |
Bulk Density :1.35-1.44 g/m3 |
|
SiO2 + Al2O3: >90% |
Water absorption: 0.30-0.60% |
|
TiO2 : 0.5-0.6% |
Porosity: 0.60-1.10% |
|
Fe2O3：<1.0% |
Crush strength: ~400 N/mm2 |
|
Fe leachable：0.002% |
H2SO4 solubility: 0.40% |
|
CaO：0.3% |
Mohs Hardness:7-8 |
|
MgO ：0.3-0.5% |
Thermal expansion: 5.5 x 10-6 /°C |
|
K2O ：1.8-2.5% |
Catalyst poisons: none |
|
Na2O：0.2% |