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We know that activated carbon is produced by high temperature carbonization, activation and refining processes using different raw materials: coconut shell, wood and coal. You can learn the differences between these three types of activated carbon in terms of production processes, pore distribution, applications, physical properties and cost of use.
Contents:
- Wood Activated Carbon
- Coal Based Activated Carbon
- Coconut Shell Activated Carbon
- Main Differences
- Conclusion
Wood Activated Carbon
It is produced from selected wood materials and activated carbon is formed using physical and chemical methods. It has the advantages of high porosity, large molecular adsorption capacity, high permeability and purity.
Coal Based Activated Carbon
It is produced from coal mines (such as bituminous coal, anthracite and lignite) using processes such as steam activation by chemical methods. It has advanced pore structure, excellent adsorption performance and high mechanical strength.
Coconut Shell Activated Carbon Prepared from coconut shells and produced by steam and phosphoric acid activation. It contains a large number of micropores and a smaller number of large pores, which allows for better adsorption of volatile organic compounds.
Main Differences:
- Production Production: Coal-based activated carbon is usually prepared by physical carbonization and chemical activation. Wood activated carbon is usually produced by chemical methods such as steam and phosphoric acid activation. Coconut shell activated carbon is usually produced by chemical methods such as steam activation.
- Pore Distribution: The pore distribution of coal-based activated carbon is diverse, containing abundant micropores. Wood activated carbon contains relatively abundant mesopores and micropores, while coconut shell activated carbon has a larger surface area and higher micropore density.
- Applications: Coal-based activated carbon has strong adsorption capabilities for various organic substances in water and air. Wood activated carbon is often used in areas such as food decolorization, water purification, air purification, solvent recovery and deodorization in the food and beverage industry, while coconut shell activated carbon is more suitable for drinking water treatment and reverse osmosis water applications.
Given these differences, it will be easier to determine which type is more suitable for which application.
