Thermal Degradation of Single and Blended Amines for CO2 Capture Process
Nabil El Hadri,
Hessa Mohammed Al Shehhi,
Dang Viet Quang,
Thermal degradation of aqueous amine solutions of monoethanolamine (MEA) 30 wt% and 50 wt%, piperazine
(Pz) 30 wt% and their blend (MEA 10 wt%/20 wt% Pz) with CO2 have been studied at 140C. A lab-scale experiment
was performed in order to study the thermal degradation at the stripper operating conditions in post-combustion process.
Experiments were done at different conditions (amine concentration, time exposure) and a quantification of the
degradation products was obtained in order to understand the different impact of these parameters. Thermal degradation
products were identified by gas chromatography - flame ionized detector (GC-FID). It has been shown that Pz is more
stable against thermal degradation in comparison with MEA.
Keywords: Amine concentration, degradation products, monoethanolamine, piperazine, thermal degradation.
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