Journal of the Korean Applied Science and Technology (한국응용과학기술학회지)

The Korean Society of Applied Science and Technology (한국응용과학기술학회)
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Conversion of Rapeseed Oil Containing Palmitic Acid into Biodiesel by Acid/Alkali Catalysts

산/알칼리 촉매에 의한 팔미트산 함유 유채유의 Biodiesel화

  • Hyun, Young-Jin (Department of Chemical Engineering & Clean Technology, Cheju National University) ;
  • Kim, Hae-Sung (Department of Chemical Engineering, Myongji University)
  • 현영진 (제주대학교 공과대학 청정화학공학과, 첨단기술연구소) ;
  • 김해성 (명지대학교 공과대학 화학공학과)
  • Published : 2006.12.31
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Abstract

The esterification of palmitic acid in rapeseed oil and methanol emulsified by propylene glycol with PTSA(p-toluene sulfonic acid) was followed by the transesterification of rapeseed oil into biodiesel with 1(w/v)% GMS(glycerol monostearate) as an emulsifier using TMAH(tetramethyl ammonium hydroxide) catalysts at $60^{\circ}C$. The former reaction was optimized at the 1:20 of molar ratio of oil to methanol and 5wt% PTSA, and the latter was optimized at the 1:8 of molar ratio of oil to methanol and 0.8wt% TMAH. The overall conversion into biodiesel was 98% after 60min of reaction time at the 1:8 of molar ratio, 0.8wt% TMAH and $60^{\circ}C$. TMAH was a good catalyst to control the viscosity of biodiesel mixture.

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References

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