Abstract
Abstract An exact and reliable estimation of amine degradation, which can lead to significant problems, such as solvent losses, degradation by-products, fouling, foaming, corrosion, and increasing solution viscosity, is very important for development of innovative amines with higher chemical stability. In this study, thermal and oxidative degradations of aqueous N, N- Diethylethanolamine (DEEA) solution with CO 2 were investigated in a 600 mL stainless steel autoclave and compared with aqueous MEA solution. The results showed that DEEA solutions demonstrated a higher resistance to thermal degradation. The influence of key operating parameters, such as temperature, CO 2 loading, and DEEA concentration, on DEEA loss (mol%) were also investigated. In addition, the possible mechanisms of DEEA thermal degradation have been developed on the basis of the identified products.
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