Effect of different olive stone particle size on the yield and surface area of activated carbon production

摘要

Usually, a few preliminary stages have been done for raw materials before the actual production of activated carbon such as materials crushing, milling and sieving to an appropriate particle size. Particle size is important for the subsequent handling of the raw material, such as mixing with a catalyst or impregnation, but it can also affect the properties of the subsequent activated carbon. This research was assessed the effect of different olive stone particle size on activated carbon production by KOH using the yield and surface area response. Three particle size ranges were examined, namely 1-2 mm, 2-4.75 and the raw material in its original form. The results demonstrated that the most suitable form was 2 mm to 4.75 mm which resulted in 38.67% of yield and 886.72 m~2 g~(-1) of a surface area and it has more rigidity compared with finer particle size and has more surface area and yield compared with olive stone in its original form.