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http://dx.doi.org/10.12925/jkocs.2016.33.1.75

Fuel Characteristics of Quercus variabilis bio-oil by Vaccum Distillation  

Chea, Kwang-Seok (Department of wood chemistry & microbiology, Korea Forest Research Institute)
Jo, Tae-Su (Department of wood chemistry & microbiology, Korea Forest Research Institute)
Lee, Soo-Min (Department of wood chemistry & microbiology, Korea Forest Research Institute)
Lee, Hyung Won (School of Environmental Engineering, University of Seoul)
Park, Young-Kwon (School of Environmental Engineering, University of Seoul)
Publication Information
Journal of the Korean Applied Science and Technology / v.33, no.1, 2016 , pp. 75-82 More about this Journal
Abstract
The technology of fast pyrolysis is regarded as a promising route to convert lignocellulose biomass into bio-oil which can be upgraded to transportable fuels and high quality chemical products. Despite these promises, commercialization of bio-oil for fuels and chemicals production is limited due to its notoriously undesirable characteristics, such as high and changing viscosity, high water and oxygen contents, low heating value and high acidity. Therefore, in this study quality improvement of bio-oil through vaccum distillation had been targeted. A 600 g of cork oak(Quercus variabilis) which grounded 0.8~1.4 mm was processed into bio-oil via fast pyrolysis for 1.64 seconds at $465^{\circ}C$ and temperature of vaccum distillation(100hPa) was designed to control, $40^{\circ}C$, 50, 60, 70, and 80 for 30min. Bio-oil, biochar, and gas of pyrolytic product were produced to 62.6, 18.0 and 19.3 wt%, respectively. The water content, viscosity, HHV(Higher Heating Value) and pH of bio-oil were measured to 0.9~26.1 wt%, 4.2~11.0 cSt 3,893~5,230 kcal/kg and 2.6~3.0, respectively. Despite these quality improvement, production was still limited due to its notoriously undesirable characteristics, therefore continous quality improvement will be needed in order to use practical fuel of bio-oil.
Keywords
fast pyrolysis; bio-oil; higher heating value; water content;
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