Real-Time Monitoring of the Transesterification of Soybean Oil and Methanol by Fourier-Transform Infrared Spectroscopy

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• 作者：Feng Zhang ; Daisuke Adachi ; Sriappareddy Tamalampudi ; Akihiko Kondo ; Keisuke Tominaga
• 刊名：Energy & Fuels
• 出版年：2013
• 出版时间：October 17, 2013
• 年：2013
• 卷：27
• 期：10
• 页码：5957-5961
• 全文大小：324K
• 年卷期：v.27,no.10(October 17, 2013)
• ISSN：1520-5029

文摘

Fourier-transform infrared spectroscopy with the attenuated total reflection method provides a fast, reliable technique to monitor the conversion of oil to fatty acid methyl esters (FAME) during biodiesel production. In this work, we employed a linear calibration method to monitor the generation of FAME in the transesterification of soybean oil and methanol, catalyzed by immobilized Candida antarctica lipase B (CALB). The interaction of the immobilized CALB catalyst with the substrates and products improved its catalytic performance. The rate law changed from zero-order in the first run to quasi-first-order in the subsequent three reaction runs. The quasi-first-order rate law was characterized by a phenomenological compressed exponential function.