Process for Producing Methyl Esters of Fatty Acids Using Supercritical Methanol

摘要

The process for producing methyl esters of fatty acids by reacting fats and oils such as soybean oil and waste oil with methanol was investigated. We have found the fact that the methyl esters are obtained at a high reaction rate in the absence of a catalyst under the supercritical conditions. This process is a clean and simple process without soap by-produced in the case of using alkali catalysts. So that, the part of the process to wash soap away using water after reaction can be omitted.