The difference between activated carbon powder and granular

Activated carbon is widely used in water, gas, soil and other fields of environmental protection materials, and the form of activated carbon (powder and granular) directly determines its performance and application range. This article will analyze the difference between activated carbon powder and granular in detail from the aspects of physical form, physical and chemical properties, practical application, etc., and provide selection suggestions for users with different needs.

The difference between 1. activated carbon powder and granular: Physical speciation analysis

from the physical form, the main difference between powdered and granular activated carbon is the difference in particle size and surface area. The particle diameter of powdered activated carbon is usually between 0.01-0,5mm, the particles are small, the surface area is large, and it has more apparent pores. The particle diameter of granular activated carbon is between 0.5-5mm, the particles are larger, and the surface area is relatively small.

The difference in surface area directly affects the adsorption performance of activated carbon. Powdered activated carbon has a larger surface area and more pores between particles, so it has a stronger selective adsorption capacity of molecular sieve. Granular activated carbon due to the large particles, the surface area is relatively limited, the adsorption capacity is slightly inferior, but the volume is also large, suitable for some specific purposes.

Physicochemical properties of 2.: powdered versus granular

1. specific surface area and porosity The specific surface area of powdered activated carbon is usually between a few to tens of m ²/g, and the porosity is above 50%, which makes it outstanding in the selective adsorption of molecular sieves. The specific surface area of granular activated carbon is low, usually between a few meters/g and a dozen meters/g, the porosity is between 20% and 50%, and the adsorption capacity is moderate.

2. selective adsorption capacity of molecular sieve Powdered activated carbon is excellent in molecular sieve selective adsorption, which can effectively remove heavy metals and organic pollutants in water. Granular activated carbon molecular sieve selectivity is low, suitable for the treatment of large particles of pollutants.

3. filtration efficiency Powdered activated carbon in the filtration efficiency of the general performance, granular activated carbon is excellent. Granular activated carbon has larger particles, which can effectively remove suspended particles and is suitable for filtration applications.

Application-oriented analysis: Advantages and disadvantages of granular versus powdered

1. application Scenarios of Powdered Activated Carbon

• catalytic reaction: Powdered activated carbon is excellent in catalytic reactions and can effectively promote the decomposition of organic matter.
• Pre-treatment as a pretreatment material, powdered activated carbon can effectively remove heavy metals and organic pollutants in water, providing better conditions for subsequent treatment.
• Decolorization and Deodorization in industrial wastewater, powdered activated carbon is often used as an auxiliary material for decolorization and deodorization.

1. Application Scenarios of Granular Activated Carbon

• filtration: Granular activated carbon is often used as a filter material because of its large particles and high filtration efficiency.
• Catalysis and catalytic reaction: Granular activated carbon is stable in catalytic reactions and is suitable for industrial applications.
• Catalyst granular activated carbon is often used as a catalyst to accelerate organic reactions and improve reaction efficiency.

1. Select Recommendations
   when choosing the form of activated carbon, it should be weighed according to specific needs:

• if a higher molecular sieve selective adsorption capacity is required, and the volume of activated carbon is small, powdered activated carbon should be selected.
• If you need a larger particle volume and a higher filtration efficiency, you should choose granular activated carbon.

4. Conclusion

there are significant differences in physical morphology and physical and chemical properties between powdered and granular activated carbon. When selecting the form of activated carbon, it should be weighed according to the specific application requirements to obtain the best adsorption and filtration performance. Whether it is powdered or granular activated carbon, they are an important tool for water, gas, and soil pollution control. The rational use of these environmentally friendly materials can make an important contribution to environmental protection.