Effect of Temperature on Torrefaction of Food Waste using Heat Carrier

This study aims to identify the feasibility to use food waste as fuel by torrefaction of food waste and comparing the influence upon the characteristics of torrefied products and temperature, heat carrier. According to the experiment result with reaction temperature 180℃~270℃ in nitrogen gas heat carrier and oil media heat carrier, the lower is the reaction temperature, water reduction was more effective by oil media heat carrier. But it was confirmed that, as the temperature is heightened, the difference was minimal. The caloric value rose from initial 660kcal/kg to 6,800Kcal/kg. As reaction temperature is heightened, Van krevelen Diagram moved to the range of Lignite range. It was confirmed that food waste can be converted to solid fuel through torrefaction reaction, and the higher is the reaction temperature, the closer to the low grade coal.