Study on Material And Energy Balance of Activated Carbon from Waste Wood
To explore the energy conversion rule and system energy utilization efficiency in the process of preparing activated carbon by steam method from waste wood,this paper studied the material of solid,liquid and gas phase and energy distribution,which were produced during the carbonization and activation processes of activated carbon.The results showed that the yield of carbonized material,syngas and tar were 25.03％,15.69％ and 23.12％ respectively,and the energy output was 68.63％.In the process of activation,the yield of activated carbon was 67.42％,the energy output was 80.77％,and the whole process activated carbon yield was 16.88％.The combustible gas generated during the preparation of activated carbon can realize self-supply of energy,64％ and 44.80％ energy of carbonization and activation processes were residual.The heat value of the tar was 13.71 MJ/kg,which can be considered burning for heating.
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