Biodiesel Production through Direct Transesterification of Waste Cooking Oil with Alcohol via Ultrasonic Wave

Abstract:

Biodiesel is prepared from waste cooking oil and methanol. The ester exchange reaction is conducted under ultrasonic conditions with alkali as the catalysts. Five factors influencing on the transesterification reaction of biodiesel production are discussed in this study, including the reaction time, reaction temperature, catalyst amount, methanol to oil molar ratio, ultrasonic power. A series of laboratory experiments were carried out to test the conversion of biodiesel under various conditions. The process of biodiesel production was optimized by application of orthogonal test obtain the optimum conditions for biodiesel synthesis. The results showed that the optimum reaction conditions were:molar ratio of oil to methanol 8:1,catalysts 1.2g KOH/100g oil,reaction temperature 70°C, reaction time 50 min,Ultrasonic power 400W. The conversion may up to 96.48%.

• Periodical: Applied Mechanics and Materials (Volume 389)
• Pages: 12-16
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.389.12
• Online since: August 2013
• Authors: Yong Feng Kang, Hua Jin Shi, Lin Ge Yang, Jun Xia Kang, Zi Qi Zhao
• Keywords: Bio-Diesel, Transesterification, Ultrasonic-Assisted, Waste Cooking Oil (WCO)

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