| 초록 |
The performance of novoldiamine was evaluated as a CO2 capture agent, and its thermal and oxidative degradation behaviors were investigated by NMR spectroscopy. The cyclic capacities of 40% aqueous solution of novoldiame at 40 °C were measured at around 1.32 mol CO2/mol novoldiame, suggesting that both primary and tertiary amino groups are participated in the CO2 capture process. 13C NMR spectrum of a CO2-loaded aqueous solution of novoldiamine clearly shows two carbonyl peaks at 164 and 163.5 ppm, Indicating that two different CO2-containing species, carbamate and bicarbonate are produced from the reaction of novoldiamine with CO2 and water. Decomposition studies show that DMTD and TU are highly effective for preventing oxidative and thermal degradation of novoldiame up to 130 °C. |
