Key words: rapeseed oil, palm oil, supercritical methanol and ethanol, trans-esterification, fatty acid methyl and ethyl esters, biodiesel fuel, heat capacity
Syntheses of methyl and ethyl esters of fatty acids via trans-esterification of vegetable oils in supercritical methanol and ethanol are carried out on the pilot installation with a continuous flow reactor. Corresponding procedures are described and results are analyzed. The effect of preliminary ultrasonic treatment of the initial mixture on the product yield is studied, and the correlation between the stability of obtained emulsions and the composition of the initial mixture, as well as the intensity of ultrasonic treatment is determined. Isobaric heat capacity of mixtures «supercritical alcohol (methanol, ethanol) — vegetable oil» is measured.
doi:10.1134/S1990793111080112