| abstract |
(57) [Problem] To provide a method for producing a fatty acid ester in high yield from an oil or fat and a monohydric alcohol without using caustic soda as a catalyst, and a fuel containing the fatty acid ester. A method for producing a fatty acid ester, wherein an oil and fat and / or a monohydric alcohol is reacted in the presence of a solid base catalyst under conditions where the oil and fat and / or the monohydric alcohol is in a supercritical state. The above-mentioned production method, wherein the reaction temperature is higher than 260 ° C. The method according to any one of the above, wherein the solid base catalyst is a catalyst containing at least one selected from the group consisting of sodium carbonate, calcium oxide, calcium hydroxide, calcium carbonate and magnesium oxide. A diesel fuel containing a fatty acid ester produced by any one of the production methods described above. |