New & Renewable Energy (신재생에너지)

Korean Society for New and Renewable Energy (한국신·재생에너지학회)
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Potential of Torrified Tulip-tree for the Production of Solid Bio-fuels

백합나무의 반탄화 처리를 이용한 고체연료화 가능성 조사

  • Ahn, Byoung Jun (Division of Wood Chemistry & Microbiology Department of Forest Products, Korea Forest Reserch Institute) ;
  • Yang, In (Department of Wood and Paper Science, Chungbuk National University) ;
  • Kim, Sang Tae (Department of Wood and Paper Science, Chungbuk National University) ;
  • Park, Daehak (Department of Wood and Paper Science, Chungbuk National University)
  • 안병준 (국립산림과학원 화학미생물과) ;
  • 양인 (충북대학교 목재.종이과학과) ;
  • 김상태 (충북대학교 목재.종이과학과) ;
  • 박대학 (충북대학교 목재.종이과학과)
  • Received : 2013.12.02
  • Accepted : 2013.12.16
  • Published : 2013.12.25
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Abstract

This study was performed to investigate the potential of torrefied tulip tree (TT) for the production of pellets. For this purpose, chemical composition and fuel characteristics of torrefied TT were examined. In addition, pellets were fabricated by using sawdust of torrefied TT chip, and durability of the pellet was measured. Lignin content of torrefied TT was higher than that of non-torrefied TT, and increased with the increases of torrefaction temperature and time. Fuel characteristics of torrefied TT were affected by torrefied conditions, and the characteristics were influenced more by torrefaction temperature than by torrefaction time. Higher heating value (HHV) and ash content (AC) of torrefied tulip tree increased with increasing torrefaction temperature, and the values were much higher than HHV and AC values of non-torrefied TT. Durability of pellets fabricated with $230^{\circ}C$- and $250^{\circ}C$-torrefied TT was higher than that of $270^{\circ}C$-torrefied TT, and the value exceeded the minimum requirement (-97.50%) of the 1st-grade pellet standard designated by Korea Forest Research Institute. Based on the results, torrefaction treatment of $250^{\circ}C/50min$ to TT might be a optimal condition for the production of TT pellets considering the mass balance and fuel characteristics of TT as well as the durability of the pellets. Thus, it is confirmed that torrefied TT can be used as a raw material for the production of bio-pellets.

Keywords

References

  1. (주)한국우드펠릿, 2011, "Development of Torrefaction Process for Production of High Heating Value Torrefacied Pellet", 산림청, pp. 15-28.
  2. Han,g. S., 2012, "Trend and outlook of wood pellet industry, Prospective of Industrial Chemistry, Vol. 15, No. 6, pp. 54-61.
  3. Simes, H. C., 1988, "Wood densification", West Virginia University Extension Service, Morgantown, West Virginia.
  4. Renewable Energy Policy Network for the 21st Century, 2013, "Renewables 2013-Global Status Report", 2013 재생에너지 현황 보고서 - REN21, pp. 8-36.
  5. Peng, J. H., 2012, "A Study of Softwood Torrefaction and Densification for the production of high quality wood pellets", University of British Columbia, Vancouver, Canada.
  6. Lee, J. W., Kim, Y. H., Lee, S. M., Lee, H. W., 2011, "Torrefaction characteristics of wood chip for the production high energy density wood pellet", Biomass Bioenergy, Vol. 40, pp. 28-34.
  7. Association of Official Analytical Chemists, 1990, "Analytical methods for chemical composition", 15th ed., Academic Press, Incorporation, Arlington, VA, pp. 313-319.
  8. 국립산림과학원, 2013, "목재펠릿 규격-품질 기준", 국립산림과학원 고시 제 2013-5호.
  9. Lee, S. M., Ahn, B. J., Choi, D. H., Han,g. S., Jeong, H. S., Ahn, S. H., Yang, I., 2013, "Effect of densification variable on the durability of wood pellets fabricated with Larix kaempferig. and Liriodendron tulipifera, L. sawdust", Biomass Bioenergy, Vol. 48, pp. 1-9. https://doi.org/10.1016/j.biombioe.2012.10.015
  10. 신수정, 유주현, 조남석, 최인규, 김문성, 박종문, 2009, "암모니아수 침지처리가 백합나무의 화학적 조성 변화와 효소 당화에 미치는 영향", 펄프.종이기술, Vol. 41, No. 1, pp. 61-66.
  11. Conjunctive Normal Form Biofuel, 2013, "Torrefaction: Energy density verses prodessing time and temperature", http://www.cnfbiofuel.com/Torrefaction.png [accessed Nov 25, 2013].
  12. White, R. H., 1987, "Effect of lignin content and extractives on the higher heating value of wood", Wood and Fiber Sci., Vol. 19, No. 4, pp. 446-452.
  13. Dhamodaran, T. K.,gnanaharan R., Thulasidas, P. K., 1989, "Calorific value variation in coconut stem wood", Wood Sci. Technol., Vol. 23, pp. 21-26. https://doi.org/10.1007/BF00350603
  14. 나병일, 2013, "낙엽송 고밀도 에너지화를 위한 반탄화의 물리-화학적 특성", 전남대학교 석사학위논문. 광주, 대한민국.
  15. Edward S., 2002, "Enhanced wood fuels via Torrefaction", Fuel Chemistry Division Preprints, Vol. 47, No. 1, p. 49.
  16. Almeida,g., Brito, J. O., Perre, P., 2010, "Alterations in energy properties of eucalyptus wood and bark subjected to torrefaction: The potential of mass loss as a synthetic indicatior", Bioresourc. Technol., Vol. 101, pp. 9784-9889.
  17. Prins, M. J., Ptasinski, K. J., Janssen, F. J. J.g. 2006, "Torrefaction of wood: Part 1. Weight loss kinetics", J. of Anal. Appl. Pyrolysis, Vol. 77, pp. 28-34. https://doi.org/10.1016/j.jaap.2006.01.002
  18. Bourgois, J.,guyonnet, R., 1989, "Thermal treatment of wood: analysis of the obtained product", Wood Sci. Technol., Vol. 23, pp. 303-310. https://doi.org/10.1007/BF00353246
  19. Shang, L., Ahrenfeldt, J., Holm, J. K., Sanadi, A. R. 2012, "Changes of chemical and mechanical behavior of torrefied wheat straw", Biomass Bioenergy, Vol. 40, pp. 63-70. https://doi.org/10.1016/j.biombioe.2012.01.049

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