Binary Isobaric Vapor−Liquid Equilibria of Ethanolamines + Water

Abstract

Binary vapor−liquid equilibria for monoethanolamine + water at pressures of 101.33 kPa and 66.66 kPa and diethanolamine + water and monoethanolamine + diethanolamine at 6.66 kPa were measured. The modified UNIFAC model was used to calculate the results.

Phase equilibrium properties of binary aqueous solutions containing ethanediamine, 1,2-diaminopropane, 1,3-diaminopropane, or 1,4-diaminobutane at several temperatures

“…The comparison of the calculated vapour pressures of EDA, 1,2-DAP, 1,3-DAP, 1,4-DAB, or water from equation (1) For pure water, our vapour pressure data agree to within 0.02% with those reported in the literature [1,[10][11][12][13][14] within the temperature range (298 to 363) K.…”

Amine volatility in CO2 capture

“…Kim et al (2008) used an ebulliometer setup to determine the total pressure with the liquid and vapor mole fractions of MEA, methyldiethanolamine (MDEA), and methylaminopropanolamine (MAPA) analyzed using gas chromatography. Cai et al (1996) measured isobaric VLE at 101.3 kPa and 66 kPa (373K -443K) of MEA in water using the standard curve of refraction index versus the mole fraction of the binary mixture at 20 ºC. The liquid phase activity coefficients were calculated with the UNIFAC group contribution model as published by Larsen et al (1987).…”

Recommended vapor pressures for aniline, nitromethane, 2-aminoethanol, and 1-methyl-2-pyrrolidone

“…, Nath and Bender [65]; , Daubert et al [66]; , Cai et al [67]; , Tochigi et al [68]; , Kapteina et al [69]; , Kim et al [70]; , Belabbaci et al [71]; , Klepáčová et al [72]; , Klepáčová et al [72] (excluded data point); , this work; , absolute deviations. Some data listed in Table 4 are not displayed because they are out of scale.…”