From Table 2, as the carbonization and activation temperatures increase from 400 to 600oC and 600 to 1000oC respectively for the different carbonization times of 1 and 2 h, the % yield decreases. The decrease of % yield from 26.69% to 20.36% at 1 h and from 25.68% to 16.31% at 2 h can be attributed to the removal of light volatile matter first followed by the removal of large molecules as temperature increases or partial combustion with air proceeds. Higher temperature makes the substances which stay deeply in the particle have the chance to disintegrate and explode. Therefore, the type of pores called mesopores would be formed more, noticed by the increased methylene blue number (about 148.4 to 192.6 mg/g and 152.1 to 201.4 mg/g for carbonization times of 1 and 2 h respectively). The bulk density was found to decrease, and the % ash content increased with increasing carbonization and activation temperatures of 400 to 600oC and 600 to 1000oC respectively for the carbonization times of 1 and 2 h. From these results, the optimum carbonization and activation temperatures were 600 and 1000oC since the methylene blue number of the resulted activated carbon had the highest values of 192.6 and 201.4 mg/g for carbonization times of 1 and 2 h respectively.