Heat capacities of fatty acid methyl esters from 300 K to 380 K and up to 4.25 MPa

Abstract

Abstract In this work, the isobaric molar heat capacities of methyl caprate and methyl laurate were measured within the temperatures from 300 K to 380 K and at pressures from 0.1 MPa to 4.25 MPa. The measurements were carried out using a flow calorimeter. The results obtained show that the isobaric molar heat capacities of methyl caprate are lower than those of methyl laurate while the isobaric molar heat capacities of these two fatty acid methyl esters rise with the increasing temperature and fall with the increasing pressure. In addition, a correlation was proposed to predict the isobaric molar heat capacities of methyl caprate and methyl laurate. The absolute relative deviations between predicted and experimental isobaric molar heat capacities are less than 0.8%.