화학공학소재연구정보센터
Korean Journal of Chemical Engineering, Vol.29, No.4, 460-463, April, 2012
Effects of ultrasonification and mechanical stirring methods for the production of biodiesel from rapeseed oil
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This study was conducted to compare the effects of ultrasonic energy and mechanical stirring methods in bio-diesel production from rapeseed oil under base catalysis conditions. With the transesterification of rapeseed oil, the molar ratio of methanol to vegetable oil was 6 : 1, and the amount of catalysts added to the vegetable oil was 0.3, 0.5 and 1.0% (wt/wt). The main components of methyl esters from the transesterification of rapeseed oil were oleic acid (48.5%, C18:1) and linoleic acid (18.1%, C18:2). In addition, the optimum conditions to produce fatty acid methyl esters (96.6%) were 0.5% KOH after 25 min of ultrasonification at 40 ℃ as compared to mechanical stirring at 60 ℃. The maximum conversion ratio was 75.6% with 1.0% NaOH after 40 min of ultrasonification at 40 ℃. These results indicate that ultrasonic energy could be a valuable tool for transesterification of fatty acids from rapeseed oil in terms of the reaction time and temperature.
  1. Knothe G, Fuel Process. Technol., 86(10), 1059 (2005)
  2. Sheehan J, Camobreco V, Duffield J, Graboski M, Shapouri H, Report of National Renewable Energy Laboratory (NREL) and USDepartment of Energy (DOE), Task No. BF886002 (1998)
  3. Vicent G, Coteron A, Martinez M, Arcil J, Ind. Crop Prod., 8, 29 (1998)
  4. Du W, Xu YY, Liu DH, Zhang J, J. Mol. Catal. B., 30, 125 (2004)
  5. Ma FR, Hanna MA, Bioresour. Technol., 70(1), 1 (1999)
  6. Mether IC, Vidya SD, Naik SN, Renew. Sustain. Energy Rev., 10, 248 (2006)
  7. Nye MJ, Southwell PH, in Pro. Vegetable Oil as Diesel Fuel Seminar III. Peoria, Northern Agricultural Energy Center (1983)
  8. Vicente G, Martinez M, Aracil J, Bioresour. Technol., 92(3), 297 (2004)
  9. Alcantara R, Amores J, Canoira L, Fidalgo E, Franco MJ, Navarro A, Biomass Bioenerg., 18, 515 (2000)
  10. Mason TJ, Trans. R. Soc. Lond. A., 357, 355 (1999)
  11. Carmen S, Vinatoru M, Maeda Y, Ultrason. Sonochem., 14, 380 (2007)
  12. Feedman B, Pryde EH, Mounts TI, J. Am Oil Chem. Soc., 61, 1638 (1984)
  13. Imahara H, Minami E, Saka S, Fuel., 85, 1666 (2006)
  14. Chung KH, Park BG, Appl. Chem. Eng., 21(4), 385 (2010)
  15. ECS (European Committee for Standardization), EN14214 (2003)
  16. Carmen S, Vinatoru M, Nishimura R, Maeda Y, Ultrason. Sonochem., 12, 367 (2005)