Application of Surface-Active Amines for CO 2 Capture from Low-Purity Sources

Surface-active tertiary amines have recently emerged as promising solvents for CO2 capture by promoting bicarbonate formation in aqueous media. This paper presents the systematic evaluation of a new class of surface-active amines, N-xPO (x = 4, 6, 9, 12, and 15), under experimental conditions relevant to industrial scenarios, such as low-purity CO2 streams and high-concentration amine solutions. A structure-performance relationship governing solubility, surface tension, and bicarbonate productio