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Fuel or energy sources scarcity is currently a problem in Indonesia. Pine waste and peanut shells are wastes that have potential to be processed into alternative energy as briquettes, using molasses as adhesive. Briquette was made by destroying the material into small pieces that have been carbonized and sieved with a variation of 20 and 30 mesh size, added with molasses, and then molded with a hydraulic press. Briquettes are dried using an oven at 105 °C for 10 hours to remove moisture content. The pine to peanut shell ratio used are of 0:1, 1:0, 1:1, 1:2, 1:3, 2:1, 2:3, 3:1 and 3:2. The analysis includes analysis of calorific value, moisture content, ash content and compressive strength. The result shows the pine waste to peanut shells ratio of 1:0 has the highest calorific value for 20 mesh is 4674.50 Cal/g and for 30 mesh is 4585.10 Cal/g. The lowest water content for 20 mesh is 1.76% and for 30 mesh is 1.85%. The lowest ash content for 20 mesh is 0.58% and for 30 mesh is 0.59%. And the highest compressive strength for 20 mesh is 35.20 kg/cm 2  and for 30 mesh is 28.90 kg/cm 2 .

Utilization of Pine Fruit and Peanut Shell Wastes into Briquettes as an Alternative Fuel