Characterization of the degradation products of amines used for post combustion CO₂ capture

Problematic: exhaustive inventory of amine degradation products, produced during the capture process :

• in the aqueous amine solution (liquid phase)
• in the treated fumes emitted to the atmosphere (gas phase).
  → Development of sampling and analysis strategies for the liquid and gas phase → identification and quantification

Implemented methods:

• For sampling/sample handling:
  • solid phase extraction (SPE),
  • solid phase microextraction (SPME),
  • liquid-liquid extraction (LLE) on cartridges,
  • extraction and thermal desorption on tubes, dynamic headspace (DHS)
• For separation :
  • gaz and liquid phase chromatography coupled with mass spectrometry (GC/MS, LC/MS-MS)
    → Complementarity of methods for identification purposes

Collaboration: ANR Dalmatien, ADEME, EDF

Ph. D in progress : Lorena Cuccia (2014-2017)

Publications:

• Amine Degradation in CO₂ Capture. 2. New degradation products of MEA. Pyrazine and alkylpyrazines: analysis, mechanism of formation and toxicity; A. Rey, et al. Int. J. Greenhouse Gas Control 2013, 19, 576-583

• Validation of a Liquid Chromatography Tandem Mass Spectrometry method for targeted degradation compounds of ethanolamine used in CO₂ capture: Application to Real Samples, V. Cuzuel, et al. Oil & Gas Sci. Tech. 2014, 1-12
  Amine Degradation in CO₂ Capture. 3. New degradation products of MEA in liquid phase. Amides and nitrogenous heterocycles, C. Gouedard, et al. Int. J. Greenhouse Gas Control 2014, 29, 61-69