I. ULUSLARARASI GÜNCEL FEN VE UYGULAMALI ARAŞTIRMALAR SEMPOZYUMU (ISCSAR 2024), Sinop, Türkiye, 18 - 19 Ekim 2024, ss.7, (Özet Bildiri)
Biomass is a renewable organic material. Biomasses can be classified as wood waste, municipal waste, and agricultural waste. Among these, woody waste is one of the most abundant resources. [1]. Biomass can be converted into more valuable solid products with higher fuel quality using conversion techniques such as pyrolysis, gasification and hydrothermal carbonization. Hydrothermal carbonization (HTC) is a method applied in the temperature range of 200-300 °C and under high pressure (2-10 MPa) [2]. In this study, wood sawdust biomass (mixture of oak, pine and fir) was used as raw material. Techniques such as Thermogravimetric Analysis (TGA), proximate analysis (%Volatile matter, ash and fixed carbon), ultimate analysis (%C, H, N, S and O) were used in the characterization of raw wood sawdust (WS). Hydrochar product was produced from WS biomass by hydrothermal carbonization method with a residence time of 180 minutes at 250°C. Techniques such as proximate and ultimate analysis, Thermogravimetric Analysis (TGA) were used in the characterization of the hydrochar product. The high heating value (HHV) of raw WS and hydrochar products was also calculated. In addition, the energy, mass yield and energy densification ratio of the hydrochar product were also calculated. The combustion behavior of raw WS and hydrochar a product was examined using the thermogravimetric analysis method and combustion parameters (Ti, Tb and Tm) were determined. Combustion characteristic index (S) is an important parameter used to evaluate the combustion performance of solid bio-fuel. Compared to the raw material, the hydrochar product has a higher S value. According to the results, the biofuel properties of wood waste were improved by the hydrothermal carbonization method.