Surface Tension of Binary Mixtures of Water + Monoethanolamine and Water + 2-Amino-2-methyl-1-propanol and Tertiary Mixtures of These Amines with Water from 25 °C to 50 °C

Abstract

The surface tension of aqueous solutions of monoethanolamine, 2-amino-2-methyl-1-propanol, and monoethanolamine + 2-amino-2-methyl-1-propanol was measured at temperatures from 25 °C to 50 °C. The concentration ranges were 0−100 mass % monoethanolamine and 2-amino-2-methyl-1-propanol, and for tertiary mixtures 50 mass % total amine concentration (the concentration range for each amine was 0−50 mass %). The experimental values were correlated with temperature and mole fraction. The maximum deviation was in both cases always less than 0.5%.

Spray absorption of CO2 into monoethanolamine: Mass transfer coefficients, dropsize, and planar surface area

“…15(a), (b) and 16(a), (b) show the comparison between the planar (radially averaged) measured D 32 , and the predictions of the Mugele (1960) and Lefebvre (1988) correlation as a function of the lean loading and liquid rate for 30 wt% MEA and 40 wt% MEA respectively. In order to calculate the D 32 for the two correlations, density, and viscosity data from Weiland et al (1998), and surface tension data from Vazquez et al (1997) were utilized. The Mugele (1960) and Lefebvre (1988) correlations are presented as Eqs.…”

CO2 desorption from rich alkanolamine solution by using membrane vacuum regeneration technology

“…(16). The surface tension of 20% MEA solvent at 343 K was evaluated to be 60.7 mN/m (Vázquez et al, 1997), and the change of contact angle for PP membrane fiber with MEA immersion time is available from the previous work by Lv et al (2010). Therefore, it can be calculated that the minimum breakthrough pressure decreased substantially from 1.54 MPa to 0.52 MPa after 480 h running, which is gradually close to trans-membrane pressure difference of 0.15 MPa during operation and makes greater potential to be pores wetted than before.…”

Model uncertainty of interfacial area and mass transfer coefficients in absorption column packings

“…Onda's correlations for liquid-phase mass transfer fulfill ±20% of agreement with the large amount of data on organic liquids and water (Potnis and Lenz, 1996). (Arachchige et al, 2013) ± 0.12 mPa·s (95% confident level, k=2) (Sobrino et al, 2016) Density ± 4.42 kg/m 3 ( 95% confident level, k=2)(CO2 loaded solution) (Jayarathna et al, 2013) ±0.05 kg/m 3 (Standard uncertainty) (CO2 loaded solution) (Amundsen et al, 2009) Surface tension ± 0.02 mN/m (accuracy) (Vazquez et al, 1997) ± 1.2 mN/m ( 95% confident level, k=2) (Jayarathna et al, 2013) DOI: 10.3384/ecp17138144…”