Coal-based activated carbon can be categorized based on its appearance and manufacturing processes into two main types: amorphous granular activated carbon and cylindrical activated carbon. Below is a detailed introduction to each type:
This type of activated carbon is characterized by its irregular, granular shape. It is produced through a series of processes, including:
Carbonization: Heating coal-based raw materials to remove volatile components.
Cooling: Stabilizing the carbonized material.
Activation: Developing a porous structure to enhance adsorption properties.
Washing: Removing impurities to improve purity and effectiveness.
Amorphous granular activated carbon is widely used in applications such as:
Purification of toxic gases.
Waste gas treatment.
Industrial and domestic water purification.
Solvent recovery.
2. Cylindrical Activated Carbon (Columnar Carbon)
Cylindrical activated carbon is made from powdered raw materials mixed with binders. It undergoes the following processes:
Kneading and Extrusion Molding: To form a cylindrical shape.
Carbonization: Removing volatile components.
Activation: Enhancing porosity and adsorption performance.
Alternatively, it can be manufactured by extruding powdered activated carbon with adhesives. This type of activated carbon has several notable features:
Developed Pore Structure: Ensures high adsorption capacity.
Good Adsorption Performance: Effective in removing impurities and contaminants.
High Mechanical Strength: Durable for various applications.
Easy Regeneration: Can be reused multiple times after proper treatment.
Cost-Effectiveness: Low production cost compared to other types of activated carbon.
Cylindrical activated carbon is commonly used for:
