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Preparation of biodiesel from corn oil assisted by microwave and reaction kinetics of esterification

  • Dejin ZHANG Yong XIE Mengyu LI Kaibing XU Jingling WU Huanhuan SUN Jiaheng Tong
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  • 1. School of Chemistry & Chemical Engineering, Suzhou University, Suzhou, Anhui 234000, China
    2. Fine Chemical Product Development Research Institute, Suzhou University, Suzhou, Anhui 234000, China

Received date: 2017-10-16

  Revised date: 2018-01-04

  Online published: 2018-08-15

Abstract

Assisted by microwave, biodiesel was synthesized using corn oil and methanol as the raw materials and concentrated sulfuric acid as the catalyst. Effect of time, temperature, volume of catalyst and microwave power on the esterification yield was investigated. The synthetic process parameters were optimized based on single factor experiment, and kinetics of esterification reaction was investigated. The results indicated the optimum process conditions were reaction temperature of 72.0℃, reaction time of 17.5 min, catalyst dosage of 8.5vol% of corn oil and microwave power of 200 W. The esterification yield was 77.6% under these conditions. The order and the activation energy of the esterification reaction were obtained as 1.28 and 1.79 J/mol respectively, and the kinetic model was established as r=8.214e?1.792/RTC1.28.

Cite this article

Dejin ZHANG Yong XIE Mengyu LI Kaibing XU Jingling WU Huanhuan SUN Jiaheng Tong . Preparation of biodiesel from corn oil assisted by microwave and reaction kinetics of esterification[J]. The Chinese Journal of Process Engineering, 2018 , 18(4) : 845 -850 . DOI: 10.12034/j.issn.1009-606X.217363

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