New Amines for CO2 Capture. III. Effect of Alkyl Chain Length between Amine Functions on Polyamines Degradation

作者：Lepaumier Helene; Martin Sandrine; Picq Dominique; Delfort Bruno; Carrette Pierre Louis^*

来源：Industrial & Engineering Chemistry Research, 2010, 49(10): 4553-4560.

DOI：10.1021/ie902006a

This study examines degradation of five tertiary polyamines (di- and triamines) in the presence of CO2 or O-2. They were chosen to identify the impact of alkyl chain length between amine functions. Degradation of aqueous amine solutions was evaluated at 140 degrees C under CO2 or air pressure (2 MPa) in stainless steel batch reactors for 15 days. At the end of the run, most degradation products were identified by gas chromatography (GC)/mass spectrometry; amounts of remaining amine and its degradation products were determined with a quantitative GC method. The main degradation mechanisms are proposed, and some structure properties relationships are established.

• 出版日期2010-5-19