At NINGBO INNO PHARMCHEM CO.,LTD., we offer a range of activated carbon products, each tailored for specific applications. Understanding the differences between various types of activated carbon, such as coal-based, coconut shell, and wood-based, as well as their key properties, is essential for selecting the most effective solution for your needs. This article provides an overview of these materials and their industrial significance.

Activated carbon is a form of carbon processed to have small, low-volume pores that dramatically increase the surface area available for adsorption or chemical reactions. Its effectiveness is largely determined by its pore structure, surface area, and the nature of its pore sizes (micropores, mesopores, macropores).

Coal-Based Activated Carbon: Derived from coal, this type of activated carbon is known for its high hardness, good chemical stability, and a balanced pore structure that includes both micropores and mesopores. Coal-based activated carbon, especially in pellet or columnar form, is highly valued for applications requiring low-pressure drop, such as gas purification and industrial water treatment. Its high mechanical strength also makes it suitable for repeated regeneration.

Coconut Shell Activated Carbon: Made from coconut shells, this activated carbon is characterized by its high proportion of micropores, making it exceptionally good at adsorbing small molecules. It is often preferred for dechlorination, odor removal in drinking water, and in applications where a high degree of purity is required. Coconut shell activated carbon is considered a renewable resource.

Wood-Based Activated Carbon: Produced from wood, this type of activated carbon typically has a higher proportion of mesopores and macropores. This structure makes it ideal for adsorbing larger molecules, and it is frequently used in decolorization processes, particularly in the food and beverage industries. While also a renewable resource, its mechanical strength may be lower compared to coal-based varieties.

Key properties that define the performance of activated carbon include:

  • Surface Area (BET): Measured in m²/g, a higher surface area generally indicates greater adsorption capacity.
  • Pore Volume: The total volume of pores within the carbon structure, influencing the amount of substance that can be adsorbed.
  • Iodine Number: A measure of micropore content, indicative of activity for small molecule adsorption.
  • CTC (Carbon Tetrachloride Activity): Another measure of adsorption capacity, particularly for organic vapors.
  • Hardness/Abrasion Resistance: Crucial for applications involving frequent handling or flow, ensuring the carbon's physical integrity.

At NINGBO INNO PHARMCHEM CO.,LTD., we supply activated carbon products that cater to a broad spectrum of industrial needs. Whether you require the robust performance of coal-based activated carbon for gas purification and water treatment, the microporous efficiency of coconut shell activated carbon, or the decolorization capabilities of wood-based activated carbon, we have the solutions to meet your requirements. We can also provide guidance on selecting the optimal activated carbon for your specific application.