Journal of the Faculty of Engineering and Architecture of Gazi University, vol.38, no.3, pp.1699-1710, 2023 (SCI-Expanded)
© 2023 Gazi Universitesi Muhendislik-Mimarlik. All rights reserved.In recent years, biomass has been used as a chemical raw material and renewable energy source for environmental reasons in many developed countries. In this study, it is aimed to elucidate the biofuel properties of tar obtained by pyrolysis of biomass. Paulownia Elongata wood was chosen as the biomass source. Paulownia is a fast growing tree species, it is cultivated as a biofuel raw material and is also used in industrial applications due to its many advantageous properties. It is used extensively in Asian countries, especially in the manufacture of furniture and ornaments. The potential to transform the wastes generated after such productions into bioenergy products is also quite high. The most commonly applied thermochemical method for biofuel production is pyrolysis. In this study, the sweeping gas flow rate (N2) (0.05, 0.10, 0.2, 0.3 L/min) and particle size (0.224-0.425; 0.425-0.6; 0.6-0, 85; 0.85-1; 1-1.8 mm) on pyrolysis product yields were investigated at a heating rate of 50°C/min and a temperature of 500°C. The highest bio-oil (tar) yield was achieved at 0.1 L/min sweeping gas (N2) rate and 0.6-0.85 mm particle size. Elemental analysis, FT-IR, 1H-NMR, GC-MS analyzes of the bio-oil obtained under these conditions were performed and it was observed that the bio-oil contained hydrocarbons, long chain carboxylic acid/esters, ketones, phenolic compounds and their derivatives. It can be said that the bio-oil, which has a rich chemical content and high heating value, can be used as a chemical raw material source and as a liquid fuel after catalytic improvement.