Production of Wood Pyrolysis Oil for Use as an Alternative Fuel in the Automotive Sector and Improvement of Its Physicochemical Properties

Authors : Arif Hakan Yalçın, Ercan Şimşir
Pages : 262-273
View : 48 | Download : 21
Publication Date : 2025-06-19
Article Type : Research Paper
Abstract :Biomass resources have the potential to replace petroleum-based fuels. Biomass can be converted into pyrolysis oil by pyrolysis method and this oil is of interest as an alternative to fossil fuels used in many areas such as automotive sector. However, pyrolysis oil is difficult to use directly in diesel engines due to its low energy density, high viscosity and water content. The easiest solution is to create mixtures with high cetane content. In this study, polyethylene glycol 400 (PEG), Wood Pyrolysis oil (WPO), n-butanol (B) and 2-ethylhexyl nitrate (2-EHN) (PEG0/PY10/B85/2-EHN5) were obtained by blending them as wt%. Then, by increasing PEG400 by 10% and decreasing n-butanol by 10% (PEG10/PY10/N-B75/2-EHN5, PEG20/PY10/B65/2-EHN5, PEG30/PY10/B55/2-EHN5, PEG40/P10/B45/2-EHN5), other blend fuels were obtained. Thus, the poor properties of pyrolysis oil were improved by blending with n-butanol and two cetane improvers PEG400 and 2-EHN as additives. The viscosity of pyrolysis oil was effectively reduced to a suitable level for use in conventional diesel engines by blending with n-butanol. In addition, the autoignition of PY blend fuels was improved by adding PEG400, 2-EHN and n-butanol. As a result, the blended fuels showed increased calorific value and cetane number and decreased kinematic viscosity, density and water content compared to pyrolysis oil in terms of physicochemical properties. Thus, the cetane numbers of the blended fuels were improved by 2,5%, 8,3%, 27,1% and 34,3%, respectively, with a 10% increase in PEG400 by weight. Thus, it was determined that the blended fuel containing 40% PEG400 by weight (PEG40/P10/B45/2-EHN5) in terms of physicochemical properties could be used as an alternative fuel in the automotive sector.
Keywords : Odun proliz yağ, PEG400, n-bütanol, 2-EHN, alternatif yakıt

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