Indonesia Conference Directory

Indonesia has coal reserves of around 166 billion tons of resources and 37 billion tons of reserves. Kalimantan land recorded as the region that holds the largest coal reserves, which is 14.9 billion tons, the largest reserves are in the east Kalimantan region of 7.5 billion tons. One effort to optimize low rank coal is to utilize the low rank coal as raw material for carbonized coal briquettes. Low rank coal research materials are obtained from the new Kampung formation. This resesarch aims to determine the carbonization coal briquette method with a temperature of 600oC in three types of organic binders namely sago flour, tapioca flour and molasses. The carbonization process is carried out for 6 hours. Carbonized coal is crushing at a size of 30 mesh, carbonized coal that has been crushing is mixed with organic binder, then printed with a manual hydraulic system of 15 kg/cm2, then dried. The quality testing of carbonized coal includes parameters of inherent moisture, ash content, volatile matter, fixed carbon and calorific value. The results showed that the carbonized coal briquette produced had the following properties: inherent moisture 11.28% - 14.21%, ash content 6.39% - 8.15%, volatile matter 37.685% - 46.07%, fixed carbon 34.51% - 42.24%, and caloric value 5632.40 cal/gr - 6937.13 cal/gr. Carbonized coal briquette that produce the highest calorific value are obtained from a combination of carbonized coal with tapioca flour, which is 6937.13 cal/gr. The quality of caloric value is fullfiled the coal briquette standard trading for SNI.