PEMBUATAN ARANG CANGKANG KELAPA SAWIT DENGAN PROSES TOREFAKSI. (Preparation of Palm Kernel Shell Charcoal Using Torrefaction Method)

Abstract

Palm kernel shells are biomass resulted from photosynthesis of chlorophyls, working as solar cells that absorb sunlight energy, then converting carbon dioxide with water into a material containing carbon, hydrogen and oxygen. The material is in solid form and can be converted into coconut shell charcoal. In the implementation of this research, coconut shell charcoal is made by coconut shell torrefaction process. From the process of coconut shell torrefaction, the average auction yield is 38.20% (the last temperature of the torrefaction process is 348 0 C, when the oil palm shells no longer smoke and the residence time is 105 minutes). Observation on the temperature and the residence time of coconut shell restriction on the smoke condition of the resulted palm oil charcoal shaping that occurs, as an indicator, it is known that the palm oil charcoal shaping process follows the typical graph of biomass stages with torrefaction process shown in Figure 1 as followed: heating stage, drying stage, post-drying stage, torrefaction stage and cooling stage.