Interfacial behaviours during biodiesel synthesis in alkaline methanol phase

International Conference on Process Engineering and Advanced Materials 2018

Kusakabe, K.^1 ; Miyazaki, H.^1 ; Sakuragi, M.^1 ; Ikeda, N.^2 ; Guan, G.^3 ; Uemura, Y.^4

Department of Nanoscience, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto

860-0082, Japan^1

Department of Environmental Science, Fukuoka Women's University, 1-1-1 Kasumigaoka, Higashi-ku, Fukuoka

813-8529, Japan^2

Institute of Renewable Energy, Hirosaki University, 2-1-3, Matsubara, Aomori 0300813, Japan^3

Center for Biofuel and Biochemical Research, Universiti Teknologi PETRONAS, Bandar Seri Iskandar, Tronoh, Perak

31750, Malaysia^4

关键词: Biodiesel synthesis;    Corn oil;    Drop volume;    Dynamic phenomena;    Fatty acid methyl ester;    Liquid-liquid interfaces;    Pendant drop methods;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/458/1/012046/pdf
DOI  :  10.1088/1757-899X/458/1/012046

来源: IOP

【 摘 要 】

Dynamic phenomena at liquid-liquid interface during transesterification of corn oil was investigated by using a pendant drop method. The drop volume of corn oil gradually decreased as time proceeds because of the dissolution of the products such as fatty acid methyl ester and glycerol in methanol. The drop volume of corn oil with 10 mol% oleic acid was almost constant during first 240 s of the reaction and then decreased. The consumption of KOH during saponification of oleic acid at the interface ceased the transesterification of corn oil. During the saponification, the apparent interfacial tension was initially increased due to the increase in hydrophilicity by transfer of water produced at the interface to methanol phase, and then, decreased due to the dissolution of fatty acid methyl ester formed by the transesterification in both oil and methanol phases.