Thermophysical behavior of carbonated aqueous solutions containing monoethanolamine and degradation products
File(s)
Published version
OA Location
Author(s)
Narciso, Claudia Rosa Hernandez
Martinez, Cristina G
O'Connell, Brendan
Reartes, Sabrina Beleen Rodriguez
Llovell, Felix
Type
Journal Article
Abstract
The impact of the degradation of monoethanolamine (MEA) on the physicochemical properties of the solvent is experimentally characterized. Based on the identification of three main degradation products of MEA: oxazolidine-2-one (OZD), N-(2-hydroxyethyl)ethylenediamine (HEEDA), and 1-(2-hydroxyethyl)-2-imidazolidinone (HEIA), new measurements for the density, surface tension, and viscosity of partially carbonated solutions containing water, MEA and those products were conducted at different MEA/degradation product molar ratios. The experiments covered a temperature range from 298.15 to 353.15 K at atmospheric pressure. The more stable and impactful degradation product, HEIA, was analyzed separately to determine its vapor pressure, as well as the density and viscosity of aqueous solutions with HEIA mass fractions of 100, 75, 50, and 25% in the same temperature range. The reported data demonstrate the difference in the performance of aqueous MEA solutions containing degradation products as compared to a fresh solution. This aspect is crucial for understanding the impact and effectiveness of postcombustion CO2 capture using aqueous amine systems in an industrial setting.
Date Issued
2024-10-10
Date Acceptance
2024-04-26
Citation
Journal of Chemical and Engineering Data, 2024, 69 (10), pp.3435-3449
ISSN
0021-9568
Publisher
American Chemical Society
Start Page
3435
End Page
3449
Journal / Book Title
Journal of Chemical and Engineering Data
Volume
69
Issue
10
Copyright Statement
© 2024 American Chemical Society. This publication is licensed under CC-BY 4.0 (https://creativecommons.org/licenses/by/4.0/)
License URL
Subjects
ALKANOLAMINE SOLUTIONS
Chemistry
Chemistry, Multidisciplinary
CO2 CAPTURE
DENSITY
DIOXIDE
Engineering
Engineering, Chemical
MEA
Physical Sciences
Science & Technology
SURFACE-TENSION
Technology
TEMPERATURES
TERTIARY ALKANOLAMINE
THERMAL-DEGRADATION
Thermodynamics
VISCOSITY
Publication Status
Published
Date Publish Online
2024-05-09