|
 |
| I.Flow Chart of Acitivated Carbon |
 |
|
| II.Classification of Acitivated Carbon |
|
|
1. by physical form
| Powdered activated carbon |
Made from sawdust. |
| Granular activated carbon |
Generally in the shape of cylinder, sphere, pallet, etc. |
| Pallet Activated Carbon |
Coconut activated carbon and coal activated carbon. Irregularly shaped. |
| Spherical activated carbon |
Materials are spherically pre-shaped before carbonization. |
| Fibrous activated carbon |
Made from fibrous materials. |
2. by fabrication method
| Chemical-activated carbon |
Activated by zinc chloride, phosphoric acid, potassium hydroxide, sodium hydroxide, etc. |
| Alkali-activated carbon |
Activated by potassium hydroxide, sodium hydroxide, etc. |
| Gas-activated carbon |
Activated by steam, carbon dioxide or air. |
| Steam-activated carbon |
Activated by steam. |
3. by intended use
| High-porosity activated carbon |
Specific surface area >2500m2/g, general purpose. |
| Molecular sieve activated carbon |
Small pore size, for gas purification. |
| Catalyst carrier |
Used as catalyst carrier for catalytic reaction. |
| Bio-impregnated activated carbon |
Used in water treatment through bio-activity of microbes impregnated on the surface of activated carbon. |
Application of activated carbon
| Gas Purification |
Gas separation, purification, refining; removal of odor, ozone, SOx, NOx and radioactive gases; natural gas storage; solvent recovery; as cigarette filer, GC column filler, etc. |
| Liquid Purification |
Industrial water treatment; water purification; removal of colorant, odor and other contaminants; rare metal recovery; cathode material, etc. |
| Catalyst Carrier |
as catalyst or catalyst carrier. |
|
|
|
|
|
|
