Study of Novel Solvents and 2MAE Blends for CO2 Post-Combustion Capture

Several studies have demonstrated the ability of amines in the capture of released CO2 from industrial and energy sources, however, the high energy consumption has prevented this technology from industrial application. The purpose of this study is to look for a novel amine blends that may overcome the high energy requirement for amine solvent based CO2 post-combustion capture. Five amines of varying chemical structures (MDEA, 2MAE, 2DMAE, IDMA2P and TMDAP) were tested on the basis of CO2 absorption capacity and heat of absorption. The most promising amine, 2MAE, was further used to blend with the four other amines and the effect of varying the blending ratios were further studied. The best performing blend is (2MAE 5wt% / TMPAD 25wt %) with a CO2 loading of 1.35 and heat of absorption between (-60.4 kJ/mol of CO2).