Densities and Excess Molar Volumes of Aqueous Solutions of n-Methyldiethanolamine (MDEA) at Temperatures from (283.15 to 363.15) K

Abstract

In this paper, we present atmospheric pressure liquid densities for binary mixtures of n-methyldiethanolamine + water over the entire composition range at temperatures between 263.15 and 363.15 K. We measure the liquid densities using a vibrating tube densimeter and use them to produce a correlation for excess molar volumes based upon a Redlich-Kister equation. The excess volumes exhibit negative deviations from ideality at all the investigated temperatures and become less negative with increasing temperature.

Low pressure solubilities of CO2 in guanidinium trifluoromethanesulfonate–MDEA systems

“…There is a good agreement between the measured densities of pure MDEA in this work, Rebolledo-Libreros and Trejo [33] and Zhao et al [34] with an average absolute deviation of 0.20%. Meanwhile, the viscosities of pure MDEA obtained in this work is in agreement with those reported by Zhao et al [34] and Bernal-Garcia et al [35] with average deviation of AE0.05%. The approach of this work on CO 2 solubility was identical to Benamor and Aroua [36].…”

“…These experimental data of pure compound and comparisons with the literature reviews [33][34][35] were presented in Table 3. There is a good agreement between the measured densities of pure MDEA in this work, Rebolledo-Libreros and Trejo [33] and Zhao et al [34] with an average absolute deviation of 0.20%.…”

Volumetric and viscometric behaviour of the binary systems of N-methyldiethanolamine and diethanolamine with 1-butyl-3-methylimidazolium acetate at various temperatures

“…Relative deviation between the density measured in this work and literature values for pure MDEA: (♦)[48];…”

“…To verify the reliability of the equipment and procedures, the density and viscosity of pure alkanolamines were measured at different temperature and compared with the experimental values of MDEA [30,31,[48][49][50][51][52][53][54][55][56][57] and DEA [49,53,[57][58][59][60][61][62] that are given by the other authors.…”

Experimental measurements and prediction of liquid densities for n-alkane mixtures

“…The precision in the density and temperature measurement is ±0.001 kg AE m À3 and ±0.001 K, respectively. The principle of the measurement appears elsewhere [15]. To test the calibration, we have measured the density of water before and after measuring all the binary mixture densities.…”