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http://dx.doi.org/10.7464/ksct.2018.24.1.070

Characteristics of Pyrolysis Oils from Saccharina japonica in an Auger Reactor  

Choi, Jae-Wook (School of Chemical and Biological Engineering, Seoul National University)
Son, Deokwon (Clean Energy Research Center, Korea Institute of Science and Technology)
Suh, Dong Jin (Clean Energy Research Center, Korea Institute of Science and Technology)
Kim, Hwayong (School of Chemical and Biological Engineering, Seoul National University)
Lee, Youn-Woo (School of Chemical and Biological Engineering, Seoul National University)
Publication Information
Clean Technology / v.24, no.1, 2018 , pp. 70-76 More about this Journal
Abstract
Pyrolysis of Saccharina japonica in an Auger reactor was conducted by varying the temperature and the auger speed and then physicochemical properties of the S. japonica-derived pyrolysis oil were analyzed. The maximum yield of S. japonica-derived pyrolysis oil (32 wt%) was obtained at a pyrolysis temperature of $412^{\circ}C$ and an auger speed of 20 rpm. Due to low carbon content and high oxygen content in the pyrolysis oil, the higher heating value of S. japonica-derived pyrolysis oil was $23.6MJ\;kg^{-1}$, which was about 60% that of conventional hydrocarbon fuels. By GC/MS analysis, 1,4-Anhydro-d-galactitol, dianhydromannitol, 1-hydroxy 2-propanone and isosorbide were identified as the main chemical compounds of S. japonica-derived pyrolysis oil. The bio-char has low higher heating value ($13.0MJ\;kg^{-1}$) due to low carbon content and high oxygen content and contains a large amount of inorganic components and sulfur.
Keywords
Pyrolysis; Saccharina japonica; Macroalgae; Pyrolysis oil; Auger reactor;
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