MANNA EXPORTS ( A Unit of Manna Venture Capital Private Limited


Activated Carbon


Activated Carbon

Specifications

PH Value 6.5 - 7.5
Methylene Value adsorption mgm/gm 190 - 350
Adsorption capacity at % by mass (min) 45
Moisture (max.) 5%
Ash (max) 5%
Hardness 90

Additional Information

Min. Order Quantity 10 Metric Ton

The process of activation is carried out in two stages. Firstly the coconut shell is converted into shell charcoal by carbonization process which is usually carried out in mud-pits, brick kilns and metallic portable kilns. The coconut shell charcoal is activated by reaction with steam at a temperature of 900oC -1100oC under controlled atmosphere in a rotary kiln. The reaction between steam and charcoal takes place at the internal surface area, creating more sites for adsorption. The temperature factor, in the process of activation is very important. Below 900oC the reaction becomes too slow and is very uneconomical. Above 1100°C the reaction becomes diffusion controlled and therefore takes place on the outer surface of the charcoal resulting in loss of charcoal.


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