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Modern Concepts & Developments in Agronomy

Pyroligneous Liquor Produced at Different Heating Rates in Pyrolysis of Eucalyptus Wood

Submission: February 17, 2018; Published: April 13, 2018

DOI: 10.31031/MCDA.2018.02.000527

ISSN: 2637-7659
Volume2 Issue1


The objective of this research was to analyze the influence of two different heating rates (2.67 °C/min, 0.67 °C/min), reaching 500 °C as final temperature in pyrolysis, on the chemical composition of the pyroligneous liquor produced. Three pyrolysis sessions were performed for each heating rate on Eucalyptus urograndis wood chips in an oven-muffle connected to a gas-collecting system. The gravimetric yield was calculated, and the chemical compounds of pyroligneous liquors were identified through gas chromatograph-mass spectrometer. Heating rates did not affect the gravimetric yield of final products. However, qualitative differences were observed in the chemical composition of pyroligneous liquors produced. The presence of 1-hidroxy 2-propanone, 4-methylphenol (p-cresol), and 5-hidroxymethyl 2-furaldehyde compounds was detected only in the pyroligneous liquor produced at the highest heating rate (2.67 °C/min).

Category: Forestry Science

Keywords: Carbonization; Pyrolysis gases; Gravimetric yield; Eucalyptus; Chromatograph; Mass spectrometry

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