Definition of Activated Carbon
Activated carbon, also known as activated charcoal, is a specially treated carbonaceous material with a highly developed pore structure and an extremely large specific surface area, which gives it excellent adsorption capacity. It is usually manufactured from raw materials such as wood, coconut shell, charcoal, etc., and undergoes a carbonization and activation process to form a porous structure. Activated carbon can adsorb organic and inorganic substances in various gases and liquids for purification, decolorization and deodorization.
In modern society, activated carbon has become one of the indispensable materials. It plays a key role in water treatment, air purification, pharmaceutical manufacturing, food processing, electronics, chemical industry and many other fields, and is of great importance to improve the quality of human life and protect the environment.
Activated Charcoal Manufacturing Process
Raw Materials
The most commonly used raw materials are coconut shell, wood and charcoal, which are carbonized and activated to produce different types of activated carbon.
Carbonization Process
The feedstock is heated in an anaerobic environment to remove volatiles and form a preliminary carbonized material.
Activation Process
Activated carbon is manufactured by two main methods: physical activation and chemical activation. Physical activation usually involves treating the raw material with water vapor or carbon dioxide at high temperatures to expand the pore structure. Chemical activation accelerates the activation process by adding chemicals like phosphoric acid, zinc chloride, etc. This method produces activated carbon with a more complex pore structure.
Reprocessing
The manufactured activated carbon is washed to remove residual chemicals and dust. The product is then sieved on demand to ensure uniform particle size. Finally, the activated carbon is packaged and ready for shipment.
Activated Carbon Types
Physical Properties
According to the particle size, activated carbon can be classified into powder, granule and honeycomb. The pore structure can be classified into microporous, mesoporous and macroporous, and activated carbon with different pore structure is suitable for different adsorption needs. The higher the specific surface area, the higher the adsorption capacity.
- Powdered activated carbon→
- Granular activated carbon→
- Activated carbon pellets→
- Activated carbon in the form of a honeycomb→ Activated carbon in the form of a honeycomb→ Activated carbon in the form of a honeycomb
Raw Material Sources
The raw materials for activated carbon come from a variety of sources, including coconut shell, wood, bituminous coal, anthracite, lignite and fruit shells.
- Coconut shell activated carbon→
- Peach shell activated carbon→ Peach shell activated carbon.
- Carbon-based activated carbon→
- Wood activated carbon→
- Apricot kernel activated carbon→ Apricot shell activated carbon.
Activated Carbon for Special Uses
Different fields have different performance requirements for activated carbon, so there are special types of activated carbon, such as pharmaceutical grade activated carbon, food grade activated carbon, etc.
- Food grade activated carbon→
- Medical grade activated carbon→
- Activated carbon for gas purification→
- Activated carbon for gold recovery→
Activated Carbon Applications
Water Treatment
Activated carbon removes organic matter, residual chlorine, odors and heavy metal contaminants from water and is widely used in water purification and water treatment. wastewater treatment.
Air Purification
It can effectively adsorb harmful gases, volatile organic compounds and odors in the air, and is used for indoor air purification and industrial waste gas treatment.
Food Processing
For sugar decolorization, fat and oil refining and beverage purification to improve food quality and safety.
Medical Applications
It has applications in the treatment of drug poisoning and gastrointestinal diseases, and is used in medical devices such as blood purification and artificial kidneys.
Industrial Application
Widely used in the solvent recovery, gold refiningcatalysts in electronics, chemical, metallurgy and other industries.
More Information About Activated Charcoal
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