Abstract
Bio-oil from biomass pyrolysis can be converted to chemicals, solid carbon materials, and syngas by various thermochemical conversion technology methods. Because of the elevated temperature, bio-oil suffers drastic component changes as the first step in these processes. Understanding the impact of heating temperature on bio-oil transformation during the distillation process is critical for practical bio-oil usage. A bio-oil feedstock produced from the pyrolysis of lamtoro wood residue at 500 °C was used in distillation from this work. Complete temperature range analysis of 96, 97, 98, 99, and 100 °C was conducted. Eight typical compounds in bio-oil were precisely quantified by gas chromatography-mass spectroscopy (GC-MS) and FTIR analysis. The results revealed that a common critical point was widely present during the distillation process, which may be attributed to a stable system generated by hydrogen bonding. As a result, the content of acetic acid, 2-Propanone, and phenol was up to 38%, 12%, and 20%, respectively. The detailed distillation characteristics and product distribution provide a comprehensive insight into the reaction process and component enrichment patterns, assisting design and parameter optimization.
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