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Microwave Mediated Production of FAME from Waste Cooking Oil : Optimization of Process Parameters by RSM

마이크로웨이브를 이용한 폐식용유로부터 FAME의 제조 : RSM에 의한 공정변수 최적화

  • Hong, In Kwon (Department of Chemical Engineering, Dankook University)
  • 홍인권 (단국대학교 화학공학과)
  • Received : 2020.02.07
  • Accepted : 2020.03.02
  • Published : 2020.04.10

Abstract

In this study, the optimization of the biodiesel production process from waste oil using microwave with response surface methodology (RSM) was conducted. The microwave irradiation time and power in addition to the alcohol/oil mole ratio were chosen as process parameters. Also the fatty acid methyl ester (FAME) content (over 96.5%) and kinematic viscosity (1.9~5.5 cSt) were selected as response values. From basic experiments, the range of quantitative factors were set as following; 4~6 min, 400~600 W, and 7~9 for the microwave irradiation time and power, and alcohol/oil molar ratio, respectively. The optimum conditions for the methanolysis were 5.0~5.1 min, 481.3~525.5 W, 7.9~8.4, and 2.0 or 3.0 mg KOH/g for the microwave irradiation time and power, methanol/oil molar ratio, and each acid value, respectively. The FAME content and kinematic viscosity were predicted as 97.49~96.34% and 4.01~4.12 cSt, respectively, under the condition above. Under the optimum experimental conditions, the results showed that the FAME content and kinematic viscosity of 97.82~96.42% and 4.07~4.16 cSt, respectively were measured and the mean error rates were 0.22% and 0.98%, respectively.

Acknowledgement

Supported by : 단국대학교

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