Welcome to Chemistry and Industry of Forest Products,

›› 2008, Vol. 28 ›› Issue (6): 15-19.

• 研究报告 • Previous Articles     Next Articles


BO Cai-ying1, BI Liang-wu1, ZHAO Zhen-dong1, CHEN Yuan-ping2, LI Dong-mei1, GU Yan1, WANG Jing1, ZHANG Qiu-ge1   

  1. 1. Institute of Chemical Industry of Forest Products, CAF;Key and Open Lab.on Forest Chemical Engineering, SFA, Nanjing 210042, China;2. Hangzhou Success Ultrasonic Equipment Co., Ltd., Fuyang 311400, China
  • Received:2008-06-27 Revised:1900-01-01 Online:2008-12-30 Published:2008-12-30

Abstract: Low-power-density ultrasonic transesterification of soybean oil with methanol was studied. It was thought that biodiesel with good quality could be obtained under the condition of lower power density of ultrasound. Molar ratio of soybean oil to methanol was 1:6. Mass ratio of potassium hydroxide to soybean oil was 0.01:1. Reaction temperature was about 30℃. Reaction time under ultrasound was 20-60 min according to the reaction scale. Conversion of transesterification calculated from refractive index of biodiesel was 84.81%-85.85%. The lowest power density used in this study was about 0.032 W/cm3 which is far lower than that of the traditional 0.5 W/cm3.

Key words: ultrasound, low-power-density, transesterification, soybean oil

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