Journal of the Korean Wood Science and Technology

The Korean Society of Wood Science & Technology (한국목재공학회)
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Characteristics of Wood Tar Produced as Byproduct from Two Types of The Kiln in The Manufacture of Oak Charcoal

  • Yang, Bong Suk (College of Life Science & Biotechnology, Dongguk University) ;
  • Yang, Jiwook (College of Life Science & Biotechnology, Dongguk University) ;
  • Kim, Dae-Young (College of Life Science & Biotechnology, Dongguk University) ;
  • Kim, Jin-Kyu (Gyeonggido Business & Science Accelerator) ;
  • Hwang, Won-Jung (Department of Forest Products, Korea Forest Research Institute) ;
  • Kwon, Gu-Joong (College of Life Science & Biotechnology, Dongguk University)
  • Received : 2017.09.18
  • Accepted : 2017.10.30
  • Published : 2017.11.25
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Abstract

This study investigated the characteristics of wood tar, produced as a byproduct during the production of charcoal using oak wood by the modified traditional kiln and mechanical steel kiln. The wood tar was analyzed with a number of techniques, including Py-GC/MS, NMR, MALDI-TOF, FT-IR, TG and DSC. The Py-GC/MS analysis indicated that modified traditional kiln generated a higher hydrocarbon ratio in the wood tar than that of mechanical steel kiln. On the other hand, mechanical steel kiln resulted in a higher proportion of phenolic and aromatic hydrocarbon components than that of modified traditional kiln. Those results were also confirmed by NMR analysis. The MALDI-TOF analysis suggested that the wood tar produced in the mechanical steel kiln had a slightly higher molecular weight than the wood tar produced in the modified traditional kiln. In addition, the FT-IR analysis showed characteristic peak of symmetrical stretching vibration of $CH_3$ from the modified traditional kiln while characteristic peaks of the C-C and C-O stretching vibration were observed from the mechanical steel kiln. Moreover, TG and DSC analysis suggested that the mechanical steel kiln is more thermally stable than that of modified traditional kiln. Those findings clearly showed that the method of making charcoal greatly affects the properties of wood tar.

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References

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