THE INVESTIGATION OF TORREFACTION AND PROPERTIES OF FORMED PRODUCTS FROM AGRO-CULTURAL RESIDUES AND WOODY BIOMASS

During past 20 years, the use of agro-culture residues for energy recovery significantly increased. While there are many ways to recover energy from agro-culture residues, such as pyrolysis, gasification or combustion, scientists have great interest in torrefaction process, because after this process biomass has higher (similar to 30%) energy density. Torrefaction, also known as mild-pyrolysis, for the pre-treatment of biomass, is a thermal process that occurs at 200-300 degrees C under an inert atmosphere and low heating rates. During the process biomass is dried, releasing CO2 (similar to 20 %), CO (similar to 80 %) and small amount volatile organics. By using thermo - gravimetric analyser and torrefaction reactor mass loses where investigated as well ultimate and proximate analysis of different agro-culture residues samples.