Asseau Activated Carbon


There are two activation methods:

Physical process by gas: the carbon is mixed with nitrogen and steam. The organic material is then destroyed and one obtains a carbonaceous skeleton which has particular properties. The whole is heated to 700 - 1000° C according to the equation:

Chemical process: the carbonaceous material is mixed with sulphuric acid, phosphoric acid or zinc chloride and the whole is heated to 400° C with 800° C. This kind of activation is applied for powdered activated carbon.


Active Coal pores

The carbon then passes through a furnace for activation:

Carbonization : +/- 300° C
Activation : between 700° C et 1000° C

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