Add time:08/08/2019         Source:sciencedirect.com

36 novel piperazine (PZ)-based amine blends were investigated for their thermal stability for CO2 capture. These amines include 7 imidazoles, 8 cyclic and long-chain diamines, 12 tertiary amines, 4 hindered amines, 3 hindered and tertiary amino acids, and 2 ether amines that were selected based on known amine structure-property relationships and their potential for industrial application. 18 thermally stable PZ-based amine blends were identified based on their degradation rates in CO2 loaded solutions at 150 and 175 °C. Degradation mechanisms were studied to understand the relationships between the structure and thermal stability of the blended amines of the blends.

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