What are the differences in performance between activated carbon made from different raw materials?

Activated carbon made from different raw materials exhibits significant differences in performance, mainly reflected in pore structure, specific surface area, mechanical strength, and adsorption capacity. These differences make different types of activated carbon suitable for different application scenarios. The following are several common activated carbons made from raw materials and their performance characteristics:

1. Wood activated carbon:

-Pore structure: typically characterized by large mesopores and macropores.

-Specific surface area: With a larger specific surface area, it is suitable for adsorbing large molecular substances.

-Mechanical strength: relatively low mechanical strength.

-Application: Suitable for water treatment and air purification that require the treatment of large molecular organic compounds.

2. Coconut shell activated carbon:

-Pore structure: mainly composed of micropores, with a very fine pore structure.

-Specific surface area: a very high specific surface area, typically between 1000-1500 square meters per gram.

-Mechanical strength: high mechanical strength and hardness.

-Application: Widely used for drinking water purification, air filtration, and gas purification, especially suitable for adsorbing small molecule substances.

3. Coal based activated carbon:

-Pore structure: a diverse structure consisting of micropores, mesopores, and macropores.

-Specific surface area: The specific surface area is moderate, and the specific value depends on the type of coal and activation method.

-Mechanical strength: generally higher mechanical strength.

-Application: Suitable for various purposes such as industrial water treatment, waste gas treatment, and solvent recovery.

4. Core activated carbon (such as almond shell, olive core):

-Pore structure: Similar to coconut shell, mainly consisting of microporous structure.

-Specific surface area: High specific surface area, suitable for adsorbing small molecules.

-Mechanical strength: High strength, wear-resistant.

-Application: Suitable for decolorization and deodorization in water treatment, air purification, and food processing.

Activated carbon made from different raw materials is suitable for different adsorption tasks and environmental conditions due to their different structures and characteristics. When selecting activated carbon, it is necessary to choose the appropriate type based on specific application requirements, such as the type and particle size of target pollutants, operating conditions, and economic factors.