- CO2 capture and in-situ conversion into bicarbonate as a carbon-bearing product using an amine with built-in surface activity
Investigation of the CO2 capture into bicarbonate using a surface-active amine as capturing solution. The surface-active amine was generated by attaching PO groups to DMAPA’s primary amino group at different levels (DMAPA-xPO, x = 4, 6, 8, 12). The CO2 capture capacity and the bicarbonate generation were analyzed by 13C NMR spectroscopy. Results showed that surface-active amine with an optimal PO level (DMAPA-6PO) enhanced the bicarbonate concentration by approximately 54%, in comparison to DMAPA with no PO attached, because of enhanced CO2 solubilization in the aqueous media.