Chemical Stability and Characterization of Degradation Products of Blends of 1-(2-Hydroxyethyl)pyrrolidine and 3-Amino-1-propanol.

ABSTRACT: Aqueous amine solvents are used to capture CO₂ from various flue gas sources. In this work, the chemical stability of a blend of 3-amino-1-propanol (3A1P) and 1-(2-hydroxyethyl)pyrrolidine [1-(2HE)PRLD] was studied. The chemical stability tests were conducted both in batch and cycled systems using various oxygen and NOx concentrations, additives (iron), and temperatures. In the thermal degradation experiments with CO₂ present, the blend was more stable than the primary amines [(3A1P or monoethanolamine (MEA)] but less stable than the tertiary amine 1-(2HE)PRLD alone. Similar stability was observed between MEA, 3A1P, and the blend in the batch experiments at medium oxygen concentration (21% O₂) and no iron present. 1-(2HE)PRLD was more stable. However, the p

SUBMITTER: Vevelstad SJ 

PROVIDER: S-EPMC9838088 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature