Influence of Pyrolysis Temperature and Particle Size on Physicochemical Properties of Biooil and Biochar obtained from The Pyrolysis of Pine Wood in A Screw Pyrolyzer

Xuanjun Jin1*, Joon Weon Choi1

(1Graduate School of International Agricultural Technology, Seoul National University)

Abstract: Recently the efforts to shape the future of sustainable alternatives to replace traditional fossil fuels have gained momentum on a global scale. Biomass, being carbon neutral and environmentally friendly, has emerged as one potentially suitable alternative option to produce commodity chemicals and sustainable fuels in this regard. Among various biomass conversion strategies, fast pyrolysis has been envisaged as one promising way for biomass conversion due to its excellent adaptability for a variety of feedstock and shorter processing time, along with relative simplicity and stability. However, the majority of domestic studies are using fluidized bed type pyrolyzer. In this study, various pine (1mm, 2mm, 6mm, 14mm, and >25mm) was pyrolyzed at 400℃, 500℃, 600℃ using a screw type pyrolyzer. The effect of particle size of feedstock and temperature on the yield and physicochemical properties (water content, TAN, HHV, et al.) of pyrolysis products (gas, bio-oil, biochar) was investigated.