Properties of Bio-Oil Derived from Eucalyptus Liquefaction with n-Octanol
This paper focused on the analysis of heavy oil derived from biomass liquefaction. Fourier transform infrared spectroscopy (FTIR), gel permeation chromatography (GPC), as well as ultimate and heating value analyses demonstrated that heavy oil was mainly derived from lignin degradation in biomass. It was comprised of aromatic and phenolic compounds with hydroxyl, carbonyl, ether, and other oxygen-containing functional groups. The obtained heavy oil was a sticky solid, and its peak molecular weight contained two parts of 2805 and 242. The heating value of heavy oil was 36 MJ/kg, which was twice that of fast pyrolysis oil. Moreover, heavy oil had a low water content and its acidity was far less than that of fast pyrolysis oil, hence offering a promising prospect for fuel application. The thermogravimetric analysis (TG) showed that the whole process could be divided into four stages. In addition, kinetic analysis indicated that the combustion process ranging from 130–690 °C could be described as three consecutive first-order reactions. The corresponding activation energy of three phases was 22.76–28.58 kJ/mol, 3.838–6.457 kJ/mol, and 17.995–36.128 kJ/mol, respectively.
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Document Type: Research Article
Publication date: September 1, 2019
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