Development of biochar using non-direct firing system from gaharu-chemical properties: article

Biochar production is used as part of modern agenda for agricultural used and to offset some greenhouse gas emissions. This study conducted to find the chemical properties of biochar using different pyrolysis temperature. Characterization of biochar from Gaharu produced at 400, 500 and 600°C were through Elemental analysis, TGA and FTIR analysis. Biochars derived from wood exhibit a high carbon content especially when pyrolysis temperature increased. The observation made through analysis proved that carbon content increased while O/C and H/C decreased because of evaporating volatile matter in the process. TGA results provided that the weight of each sample is indirectly proportional to the pyrolysis temperature. The functional groups for each of the sample will be decided through FTIR analysis. The results demonstrated that production temperature acted as predominant factor which determined the properties of biochar.