New approach of catalyst-free biodiesel production from canola oil in supercritical tert-butyl methyl ether (MTBE)

作者：Farobie Obie; Yanagida Takashi; Matsumura Yukihiko^*

来源：Fuel, 2014, 135: 172-181.

DOI：10.1016/j.fuel.2014.06.049

• Biomass
• Biodiesel
• Canola oil
• Supercritical condition
• Tert-butyl methyl ether

This paper reports a novel approach for biodiesel production from canola oil in supercritical tert-butyl methyl ether (MTBE) without the addition of a catalyst. Using this technique, canola oil was reacted with MTBE to generate fatty acid methyl esters (FAMEs) and glycerol tert-butyl ether. No glycerol was obtained as a by-product in this reaction. The effects of temperature, pressure, and reaction time on product yield were investigated in supercritical MTBE. A FAME yield of 0.94 was obtained in a short reaction time of 12 min at 400 degrees C, with a molar ratio of MTBE-to-oil of 40:1, and under a pressure of 10 MPa. The kinetics of the reaction was first order, and the activation energies and pre-exponential factors were calculated from the temperature dependence of the reaction rate constants.

• 出版日期2014-11-1