화학공학소재연구정보센터
Korean Journal of Chemical Engineering, Vol.33, No.3, 851-857, March, 2016
Fuel characteristics of agropellets fabricated with rice straw and husk
E-mail:
Our aim was to identify the potential of rice straw (RS) and rice husk (RH) as raw materials for pellet production. Compared to woody biomass, RS and RH can be easily dried, but contain significant levels of ash. Higher heating values of oven-dried RS and RH are slightly lower than those of commercial wood pellets. RS and RH contain substantially more silicon, potassium and calcium than larch sawdust. However, ash and moisture contents of RS was significantly reduced following a 15-week exposure period on rice paddy. These results suggest that RS and RH present suitable alternatives to wood as raw materials for pellet production due to their availability, relatively high calorific value and low moisture content. The durability of RS and RH pellets improved steadily with increasing pelletizing temperature and time. Pelletization under appropriate conditions also enabled the durability and bulk density of RS and RH to be improved, enhancing their potential as alternative combustion fuels.
  1. Boman C, Ohman M, Nordin A, Energy Fuels, 20(3), 993 (2006)
  2. Hillring B, Vinterback J, For. Prod. J., 48, 68 (1998)
  3. International Wood Market Groups, Monthly International Report - Wood Pellets Markets/Trends, http://www.unecefaoiufro.lsu.edu/marketing/documents/2010/gme10_03.pdf, Vancouver (2010).
  4. McLaughlin SB, Walsh ME, Biomass Bioenerg., 14, 318 (1998)
  5. Parrish DJ, Fike JH, Crit. Rev. Plant Sci., 24, 424 (2005)
  6. Kim YH, Na BI, Ahn BJ, Lee HW, Lee JW, Korean J. Chem. Eng., 32(8), 1547 (2015)
  7. Stelte W, Holm JK, Sanadi AR, Barsberg S, Ahrenfeldt J, Henriksen UB, Biomass Bioenerg., 35, 911 (2011)
  8. Obernberger I, Thek G, Biomass Bioenerg., 27, 659 (2004)
  9. Korean Statistical Information Service, Rice production, http://kosis.kr/nsieng/view/Stat10. do, Daejeon (2013).
  10. Govett R, Mace T, Bowe S, A practical guide for the determination of moisture content of woody biomass, http://dnr.wi.gov/topic/ForestBusinesses/documents/BiomassMoistureContent.pdf, Madison (2010).
  11. National Renewable Energy Laboratory, Determination of ash in biomass, Technical Report of NREL/TP-510-42622, Golden (2008).
  12. Association of Official American Chemists, Analytical methods for chemical composition, Academic Press, Arlington (1990).
  13. National Renewable Energy Laboratory, Determination of structural carbohydrates and lignin in biomass, Technical Report of NREL/TP-510-42618, Golden (2011).
  14. Samson R, Mani S, Boddey R, Sokhansanj S, Quesada D, Urquiaga S, Reis V, Lem CH, Crit. Rev. Plant Sci., 24, 482 (2005)
  15. Demirbas A, Eng. Sources, 25(7), 684 (2003)
  16. Goncalves C, Tran H, Braz S, Puig F, Shenassa R, Pulp Pap. Can., 109(3), 34 (2008)
  17. Korea Forest Research Institute, Standard for the quality of wood pellets, Seoul (2013).
  18. Kim DW, Lee JM, Kim JS, Seon PK, Korean Chem. Eng. Res., 48, 60 (2010)
  19. Lee SM, Ahn BJ, Choi DH, Han GS, Jeong HS, Ahn SH, Yang I, Biomass Bioenerg., 48, 7 (2013)
  20. Kaliyan N, Morey RV, Biomass Bioenerg., 33, 342 (2009)
  21. European Committee for Standardization, Specification of wood pellets for non-industrial use, European Standards EN 14961-2, Brussels (2010).
  22. Hui Y, Comparison of woody pellets, straw pellets, and delayed harvest system herbaceous biomass (switchgrass and miscanthus): Analysis of current combustion techniques determining the value of biomass, http://edepot.wur.nl/192415 (2013).
  23. European Committee for Standardization, Solid biofuels - Fuel specification and classes - Part 6: Nonwoody pellets for non-industrial use, European Standards EN 14961-6, Brussels (2012).
  24. White RH, Wood Fiber Sci., 19(4), 450 (1987)
  25. Dhamodaran TK, Gnanaharan and R, Thulasidas PK, Wood Sci. Technol., 23, 24 (1989)
  26. Cordero T, Marquez F, Rodriguez-Mirasol J, Rodriguez J, Fuel, 80, 1569 (2001)
  27. Jenkins BM, Baxter LL, Miles TR, Miles TR, Fuel Process. Technol., 54, 27 (1998)
  28. Lu F, Ralph J, Cereal straws as a resource for sustainable biofuels and biomaterials, Sun RC, Ed., Elsevier, Amsterdam (2010).
  29. Said N, Abdel MM, Garcia-Maraver A, Zamorano M, Bioresources, 9(4), 6756 (2014)
  30. Ahn BJ, Chang H, Lee SM, Choi DH, Cho ST, Han GS, Yang I, Renew. Energy, 62, 22 (2014)