Comparative Analysis of Coconut Shell Activated Carbon and Coal-Based Activated Carbon

Coconut Shell Activated Carbon

Coal-Based Activated Carbon

Activated carbon filter media is a material with high porosity and adsorption performance, and its pore structure allows it to adsorb, separate, and extract different types of chemicals. Coconut shell activated carbon and coal-based activated carbon are two common activated carbon materials, and they have some differences in terms of density, shape, floating and sinking characteristics, and bubble generation size. In order to better distinguish these two activated carbon materials, we have conducted a comparative analysis of their differences.

• Density and Volume

  Coconut shell activated carbon has a smaller density and feels lighter. For the same weight of coconut shell activated carbon and coal-based activated carbon, the volume of coconut shell activated carbon is generally larger than that of coal-based activated carbon.

• Shape

  Coconut shell activated carbon is generally in the form of broken particles or flakes, while coal-based activated carbon is often in the form of cylindrical or spherical shapes.

• Floating or Sinking

  Due to the small density and light feel of coconut shell activated carbon, you can put both types of activated carbon in two different cups of water. Coal-based activated carbon generally sinks to the bottom faster, while coconut shell activated carbon floats in water for a longer time. As the coconut shell activated carbon adsorbs water molecules to saturation and increases its own weight, it gradually sinks to the bottom. After all the coconut shell activated carbon has sunk to the bottom, you will see that each activated carbon particle is wrapped in a small bubble, which is clear and transparent.

• Bubble

  Coconut shell activated carbon has a small molecular pore structure. When coconut shell activated carbon is placed in water, the air released during the adsorption of water molecules will produce many very small bubbles, densely floating towards the water surface. On the other hand, coal-based activated carbon generally has a large molecular pore structure, resulting in relatively larger bubbles.