KSBB Journal

The Korean Society for Biotechnology and Bioengineering (한국생물공학회)
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Optimization of Biodiesel Production from Waste Frying Oil using Response Surface Method

Response Surface Method를 이용한 폐식용유로부터 바이오디젤 생산의 최적화

  • 이세진 (서울시립대학교 공과대학 화학공학과) ;
  • 김의용 (서울시립대학교 공과대학 화학공학과)
  • Published : 2002.08.01
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Abstract

Biodiesel has attracted considerable attention during the past decade as a biodegradable, nontoxic, and renewable fuel, Several processes for the production of biodiesel have been developed, among which transesterification under alkali-catalysis gives high level yield of methyl esters in short reaction times. In this research, response surface method was applied to optimize the transesterification reaction under alkali-catalysis. It was found that reaction temperature, reaction time, and agitation rate of reactor had profound effects among the seven variables affecting on biodiesel conversion. The optimal temperature, reaction time, and agitation speed were 67$^{\circ}C$, 68 minutes, and 94 rpm, respectively. Under the optimal conditions, the experimental value of biodiesel conversion was 99.7%.

바이오디젤(지방산 메틸 에스테르)은 생분해성, 무독성, 그리고 재생연료로서 지난 10여년간 많은 관심을 끌고 있다. 바이오디젤을 생산하기 위해 다양한 방법들이 개발되었는데, 그 중 알칼리 촉매를 이용한 에스테르화 반응이 짧은 시간동안 높은 수율을 얻을 수 있다. 따라서 본 연구에서는 알칼리 촉매하에 에스테르화 반응의 최적조건을 찾기 위하여 response surface method를 사용하였다. 결과적으로 바이오디젤 생산 공정에 영향을 주는 7개의 변수 중 반응온도, 반응시간, 그리고 교반속도가 중요했는데 이들의 최적 값은 각각 67$^{\circ}C$, 68분, 94 rpm이었다. 이와같은 최적인 조건하에서 실험한 결과 바이오디젤로의 전화율은 99.7%이었다.

Keywords

References

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