Abstract
Fast pyrolysis is an effective technology for conversion of biomass into energy and value-added chemicals instead of burning them directly. In this study, fast pyrolysis of waste furniture sawdust (pine sawdust) was investigated under various reaction conditions (reaction time, pyrolysis temperature, heating rate, residence time and particle size) in a tubular reactor. The optimum reaction conditions for bio-oil production was found as reaction time of 5 min, pyrolysis temperature of 500 °C, heating rate of 300 °C min(-1) under nitrogen flow rate of 400 cm(3) min(-1). At these conditions, maximum bio-oil yield was obtained as 42.09%. Pyrolysis oils were characterized by using various elemental analyses, fourier - transformation infrared (FT-IR) spectrometry and gas chromatography-mass spectrometry (GC-MS). The results of the GC-MS showed that cracking of large molecular phenolics was followed by partial conversion into phenol and alkylated phenols (45%) during the pyrolysis. According to the experimental and characterization results; the liquid product could be used as feedstock for the chemical industry or petroleum crude for refinery.
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