Characteristics in boiler charcoal wastes using woods and temperature

Boiler charcoal wastes are wood fuel burning residuals produced within boiler burming chamber at the temperature of higher than 500 °C. These waste have a great deal of potential of being converted into active carbon. This study aimed at finding out the active carbon characteristics of the arang boiler wastes with woods and temperature variables, which affected the quality of the active carbon under the SII and SNI standards, which comprised analyses of active carbon quality, crystalinity test using an X-Ray Difraction (XRD) method, and morphological and composition test using a SEM-EDX (Scanning Electron Microscope- Energy Dispersive X-Ray) method. The test was performed by creatig carbon from different woods, i.e. teakwood, nangka wood, and mango wood and different temperatures, i.e. 550, 600, 650, 700, and 750 °C. The most satisfying arang boiler wastes during the study was obtained from the teakwood carbonized at 750 °C with the physical characteristics of 1.01% water, 15.12% vaporated substances, 2.3 ash, 82.5% bound carbon, 314.15 mg/gr iodine absorption rate, crystalinity rate of 40.886%, pores diameter of 0.75 μm, and chemical composition (%b) of 95.94% C, 0.33%SO₃, 2.06% Cl, 0.49% K₂O, 0.79% CaO, and 0.38% CuO. (paper)