Abstract:

This paper studied on the effects of carbonizing temperatures on the yield of charcoal, reduction, pH value, specific surface area and adsorption of benzene vapor, chloroform vapor. Under this experimental condition, specific surface area of the charcoal samples is low. The results showed the largest ratio of (C+H)/O was observed at 800℃.The pH values of charcoal increased with increasing carbonization temperatures. The wood carbonized at 700℃ showed the highest specific surface area. For the largest adsorption of chloroform was observed at 600℃, the adsorption was 8.5%. The benzene adsorption capacities of the charcoal increased with increasing carbonization temperature, peaking at 800℃, the adsorption was 5%.

Key words: Wood charcoal, Carbonization temperature, Adsorption, Chloroform, Benzene