Thermal Stability of Particle-Phase Monoethanolamine Salts

Document Type

Article

Publication Date

2-20-2018

Abstract

The use of monoethanolamine (MEA, 2-hydroxyethanamine) for scrubbing of carbon dioxide from combustion flue gases may become the dominant technology for carbon capture in the near future. The widespread implementation of this technology will result in elevated emissions of MEA to the environment that may increase the loading and modify the properties of atmospheric aerosols. We have utilized experimental measurements together with aerosol microphysics calculations to derive thermodynamic properties of several MEA salts, potentially the dominant forms of MEA in atmospheric particles. The stability of the salts was found to depend strongly on the chemical nature of the acid counterpart. The saturation vapor pressures and vaporization enthalpies obtained in this study can be used to evaluate the role of MEA in the aerosol and haze formation, helping to assess impacts of the MEA-based carbon capture technology on air quality and climate change.

Identifier

85042317117 (Scopus)

Publication Title

Environmental Science and Technology

External Full Text Location

https://doi.org/10.1021/acs.est.7b06367

e-ISSN

15205851

ISSN

0013936X

PubMed ID

29368508

First Page

2409

Last Page

2417

Issue

4

Volume

52

Grant

42956

Fund Ref

National Science Foundation

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