Reaction Condition for Biodiesel Production from Animal Fats

동물성 유지를 이용한 바이오디젤 생산의 반응조건

  • Yang, Hee-Seung (School of Biological Sciences and Technology, Chonnam National University) ;
  • Jeong, Gwi-Taek (School of Biological Sciences and Technology, Chonnam National University) ;
  • Park, Suk-Hwan (School of Biological Sciences and Technology, Chonnam National University) ;
  • Park, Jae-Hee (School of Biological Sciences and Technology, Chonnam National University) ;
  • Park, Don-Hee (School of Biological Sciences and Technology, Chonnam National University)
  • 양희승 (전남대학교 생명과학기술학부) ;
  • 정귀택 (전남대학교 생명과학기술학부) ;
  • 박석환 (전남대학교 생명과학기술학부) ;
  • 박재희 (전남대학교 생명과학기술학부) ;
  • 박돈희 (전남대학교 생명과학기술학부)
  • Published : 2007.08.30

Abstract

The high cost and lack of vegetable oil are limiting the expansion of biodiesel production. The purpose of research was to investigate the potential of animal fats as biodiesel feedstock. In this paper, transesterification using alkali catalyst and methanol was performed to reaction, we carried out experiments that it was changed variables as reaction temperature, methanol molar ratio, catalyst types, amount of catalyst and reaction time. The optimum reaction condition for biodiesel production was reaction temperature 65$^{\circ}C$, potassium hydroxide 1.0% (w/w), oil to methanol molar ratio 1:15 and reaction time 20 min. In this reaction condition, the contents of fatty acid methyl ester was reached to about 98.7%. Also, properties of biodiesel were measured to correspond to domestic quality standard of acid values, density and viscosity.

동물성 유지로부터 알칼리 촉매를 사용한 전이에스테르화 반응에 있어 적정 반응조건을 탐색한 결과는 다음과 같다. 1 L 규모의 회분식 반응기에서 적정 반응조건은 반응온도 65$^{\circ}C$, KOH 1.0% (w/w), 그리고 유지와 메탄올의 몰 비 (1:15)의 조건에서 20분 동안 반응 시에 98.9%의 높은 지방산 메틸에스테르 함유량을 얻을 수 있었다. 또한, 생산한 지방산 메틸에스테르의 물성을 분석해 본 결과, 점도는 4.2 (40$^{\circ}C$, cp)로 감소하였으며, 산가 0.08 (mg KOH/g), 밀도 865 ($15^{\circ}C,\;kg/m^3$)로 국내 바이오 디젤 품질규격을 만족시키는 결과를 얻었다. 알칼리 촉매를 이용한 동물성 유지의 전이에스테르화에 관한 연구를 통하여 식물성 유지와 더불어 바이오디젤의 원료 유지로써 동물성유지의 사용 가능성을 확인할 수 있었다.

Keywords

References

  1. Van, G. J., B. Shanks, R. Pruszko, D. Clements, and G. Knothe (2004), Biodiesel production technology, National Renewable Energy Labortory 1-4
  2. Fangrui, M. and A. H. Milford (1999), Biodiesel production: a review, Bioresource Technology 70, 1-15 https://doi.org/10.1016/S0960-8524(99)00025-5
  3. Xie, W., X. Huang, and H. Li (2007), Soybean oil methyl esters preparation using NaX zeolites loaded with KOH as a heterogeneous catalyst, Bioresource Technology 98, 936-939 https://doi.org/10.1016/j.biortech.2006.04.003
  4. Lebedevas, S. and A. Vaicekauskas (2006), Use of waste fats of animal and vegetable origin for the production of biodiesel fuel: Quality, motor properties an emission of harmful components, Energy & Fuels 20, 2274-2280 https://doi.org/10.1021/ef060145c
  5. Canakci, M. (2007), The potential of restaurant waste lipids as biodiesel feedstocks, Bioresource Technology 98, 183-190 https://doi.org/10.1016/j.biortech.2005.11.022
  6. Altiparmak, D., A. Keskin, A. Koca, and M. Guru (2007), Alternative fuel properties of tall oil fatty acid methyl ester-diesel fuel blends, Bioresource Technology 98, 241-246 https://doi.org/10.1016/j.biortech.2006.01.020
  7. Zhanga Y., M. A. DuMa, D. D. McLean, and M. Katesb, Biodiesel production from waste cooking oil: 1. Process design and technological assessment, Bioresource Technology 89(1), 1-16 https://doi.org/10.1016/S0960-8524(03)00040-3
  8. Wang, Y., S. au, P. Liua, and Z. Zhanga (2006), Preparation of biodiesel from waste cooking oil via two-step catalyzed process, Energy Conversion and Management 48, 184-188 https://doi.org/10.1016/j.enconman.2006.04.016
  9. Richard, G. N. and D. S. Mark (2006), Energetic and economic feasibility associated with the production, processing and conversion of beef tallow to a substitute diesel fuel, Biomass and Bioenergy 30, 584-591 https://doi.org/10.1016/j.biombioe.2005.09.005
  10. Huang, C. and D. Wilson (2000), Improving the cold flow properties of biodiesel, 91st American Oil Chemist's Society Annual Meeting 2000, Sandiego, USA, 13-16
  11. Kazancev, K., V. Makarevicine, V. Paulauska, and P. Janulis (2006), Cold flow properties of fuel mixtures containg biodiesel derived from animal fatty waste, Eur. J. Lipid Sci. Technol. 108, 753-758 https://doi.org/10.1002/ejlt.200600074
  12. Korean standard association (2003), Animal and vegetable fats and oils analysis by gas chromatography of methyl esters of fatty acids, KS H ISO 5508
  13. Korean standard association (2003), Petroleum products and lubricant determination of acid or base number: colour indicator titration method, KS M ISO 6618
  14. Korean standard association (2006), Crude petroleum and liquid petroleum products laboratory determination of density hydrometer method, KS M 2002
  15. Vicente, G., M. Martinez, and J. Aracil (2006), Optimisation of integrated biodiesel production. Part I: A study of the biodiesel purity and yield, Bioresource Technology 98, 1754-1761 https://doi.org/10.1016/j.biortech.2006.07.023
  16. Leung, D. and Y. Guo (2006), Transesterification of neat and used frying oil: Optimization for biodiesel production, Fuel Processing Technology 87, 883-890 https://doi.org/10.1016/j.fuproc.2006.06.003
  17. Jeong G. T and D. H. Park (2006), Batch (one-and two-stage) production of biodiesel fuel from rapeseed oil, Applied Biochemistry and Biotechnology 129-132, 668-679
  18. Tashtoush, G. M., M. I. Al-Widyan and M. M. Al-Jarrah (2004), Experiment a study on evaluation and optimization of conversion of waste animal fat into biodiesel, Energy Conversion and Management 45, 2697-2711 https://doi.org/10.1016/j.enconman.2003.12.009