Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Characteristics of Transesterification Reaction of Soy Bean Oil by Acid Catalysts

산촉매에 의한 대두유의 전이에스테르화 반응 특성

  • Shin, Yong-Seop (Department of Civil & Environmental Engineering, Kyungsung University)
  • 신용섭 (경성대학교 건설환경공학부)
  • Published : 2009.02.28
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Abstract

Characteristics of the transesterification reaction between triglycerides in soy bean oil and methanol were investigated in the presence of acid catalysts. such as sulfuric acid and PTS (p-toluene sulfonic acid). Concentrations of diglyceride and monoglyceride which were intermediates in the reaction mixtures, were far below 10% of triglyceride under any reaction conditions. Thus, conversion of the reaction could be determined from the concentration of triglyceride. Dried PTS had more superior catalytic power than sulfuric acid for transesterification reaction between soy bean oil and methanol. When transesterification reaction of soy bean oil was catalyzed by 1 wt% of PTS at methanol stoichiometric mole ratio of 2 and $65^{\circ}C$, final conversion reached 95% within 48 hours. If FAME (fatty acid methyl ester) was added into reaction mixture of soy bean oil, methanol and PTS catalyst, it converted reaction mixture into homogeneous phase, and substantially increased reaction rate. When reaction mixture was freely boiling which had equal volumetric amount of FAME to soy bean oil, methanol stoichiometric mole ratio of 2 and 1 wt% of PTS, final conversion achieved value of 94% and temperature approached to $110^{\circ}C$ within 2 hours.

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References

  1. NREL, 2004, Biodiesel analytical methods, NREL/SR- 510-36240, 6pp
  2. Bartholomew D., 1981, Vegetable oil fuel, JAOCS, 58, 286A-288A https://doi.org/10.1007/BF02541575
  3. Ma F, Hanna M. A., 1999, Biodiesel production: a review, Bioresource Technology, 70, 1-15 https://doi.org/10.1016/S0960-8524(99)00025-5
  4. Tyson K. S., 2005, DOE analysis of fuels and coproducts from lipids, J. Fuel Processing Technology, 86, 1127-1136 https://doi.org/10.1016/j.fuproc.2004.11.007
  5. 차운오, 2007, 바이오디젤 산업 동향, NICE, 25(6) 609-613
  6. 이웅영, 2007, 바이오디젤, ibid, 25(5), 471-474
  7. 이진석, 2007, 화학 촉매에 의한 바이오디젤 생산, ibid, 25(6), 613-617
  8. 홍연기, 홍원희, 2007, 바이오디젤 공정기술과 연료특성, Korean Chem. Eng. Res., 45(5), 424-432
  9. Gerpen J. V., 2005, Biodiesel processing and production, J. Fuel Processing Technology, 86, 1097- 1107 https://doi.org/10.1016/j.fuproc.2004.11.005
  10. Babcock D. G. B., Konar S. K., Mao V., Sidi H., 1996, Fast one-phase oil-rich processes for the preparation of the vegetable oil methyl esters, Biomass and Bioenergy, 11(1), 43-50 https://doi.org/10.1016/0961-9534(95)00111-5
  11. Meher L. C., Sagar D. V., Naik S. N., 2006, Technicall aspects of biodiesel production by transesterification -a review, Renewable and Sustainable Energy Reviews, 10, 248-268 https://doi.org/10.1016/j.rser.2004.09.002
  12. Marchetti J. M., Miguel V. U., Errazu A. F., 2007, Possible methods for biodiesel production, ibid, 11, 1300-1311 https://doi.org/10.1016/j.rser.2005.08.006
  13. Berrios M., Siles J., Martin M. A., Martin A., 2007, A kinetic study of the esterification of free fatty acids in sunflower oil, Fuel, 86, 2283-2388 https://doi.org/10.1016/j.fuel.2007.01.036
  14. Hou X., Qi Y., Qiao X., Wang G., Qin Z., Wang .J., 2007, Lewis acid catalyzed transesterification and esterification of high free fatty acid oil in subcritical methanol, 24(2), Korean J. Chem. Eng., 311-313 https://doi.org/10.1007/s11814-007-5052-x
  15. Demirbas A., 2008, Biodiesel, Springer, 121pp
  16. Noureddini H., Zhu D., 1997, Kinetics of transesterification of soybean oil, JACOS, 74, 1557-1564 https://doi.org/10.1007/s11746-997-0254-2
  17. Freedman B., Pryde E. H., Mounts T. L., 1984, Variables affecting the yield of fatty esters from transesterified vegetable oils, JAOCS, 61, 1638-1643 https://doi.org/10.1007/BF02541649
  18. 손종락, 1992, 고체초강산 촉매와 그 응용, 공업화학, 3(1), 7-17
  19. Corma A., 1997, Solid acid catalysts, Solid Catalysts and Porous Solids, 2, 63-75
  20. Knothe G., Gerpen J. V., Krahl J., 2005, The biodiesel handbook, AOCS press, 34pp
  21. 신용섭, 2004, 고체 촉매를 이용한 대두유와 폐식용유의 에스테르화, 한국환경과학회지, 13(1), 79-87 https://doi.org/10.5322/JES.2004.13.1.079