Thermal Stability of Particle-Phase Monoethanolamine Salts

Xiaolong Fan, Joseph Dawson, Mindong Chen, Chong Qiu, Alexei Khalizov

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


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.

Original languageEnglish (US)
Pages (from-to)2409-2417
Number of pages9
JournalEnvironmental Science and Technology
Issue number4
StatePublished - Feb 20 2018

All Science Journal Classification (ASJC) codes

  • General Chemistry
  • Environmental Chemistry


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