Response Surface Methodological Approach for Optimization of Removal of Free Fatty Acid in Crude Oil

  • Jeong, Gwi-Taek (School of Biological Sciences and Technology, Chonnam National University) ;
  • Lee, Kyoung-Min (School of Biological Sciences and Technology, Chonnam National University) ;
  • Yang, Hee-Seung (School of Biological Sciences and Technology, Chonnam National University) ;
  • Park, Seok-Hwan (Faculty of Applied Chemical Engineering, Chonnam National University) ;
  • Kim, Jae-Hoon (Mudeung Bioenergy Co.) ;
  • Kim, Do-Man (School of Biological Sciences and Technology, Faculty of Applied Chemical Engineering, Institute of Bioindustrial Technololgy, Chonnam National University) ;
  • Park, Don-Hee (School of Biological Sciences and Technology, Faculty of Applied Chemical Engineering, Institute of Bioindustrial Technololgy, Chonnam National University)
  • Published : 2005.10.27

Abstract

To optimize the removal of free fatty acid in crude vegetable oil, response surface methodology was applied to determine the effects of five level-four factors and their reciprocal interactions on removal of free fatty acid. A total of 30 individual experiments were performed, which were designed to study reaction temperature, reaction time, catalyst amount and methanol amount. A statistical model predicted that the highest removal yield of free fatty acid was 99.8%, at the following optimized reaction conditions: a reaction temperature of 64.99$^{\circ}C$, a reaction time of 36.20 mins., an catalyst amount of 13.01% (w/v), and a methanol amount of 15% (v/v). Using these optimal factor values under experimental conditions in three independent replicates, the average removal yield was well within the value predicted by the model.

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