The absorption/desorption performance of carbon dioxide (CO₂) in aqueous 5 M monoethanolamine (MEA) solutions in the presence of various solution regeneration promoters was comprehensively investigated using a multiple rapid screening method. The promoters considered were N-methyldiethanolamine (MDEA), N,N-dimethylethanolamine (DMEA), N,N-diethylethanolamine (DEEA), 1-dimethylamino-2-propanol (1DMA2P), 1-diethylamino-2-propanol (1DEA2P), 3-dimethylamino-1-propanol (3DMA1P), 2-(dimethylamino)-2-methyl-1-propanol (2DMA2M1P), triethanolamine (TEA), 3-(dimethylamino)-1,2-propanediol (3DMA-1,2-PD), and 3-(diethylamino)-1,2-propanediol (3DEA-1,2-PD). The molar concentration of these promoters added into 5 M MEA was set to 1 mol/L. At the atmospheric pressure, the absorption and stripping experiments were carried out at 313.15 and 353.15 K, respectively. Especially, the CO₂ partial pressure was controlled at constant 15 kPa for absorption experiments. In addition, the equilibrium solubility of CO₂ was also determined in order to evaluate the driving force of each amine system. The results showed that the highest CO₂ equilibrium solubility of 0.5548 mol CO₂/mol amine was obtained by MEA/1DEA2P, whereas both the fastest absorption and regeneration rates were achieved for aqueous blended MEA/1DMA2P solution which made MEA/1DMA2P to exhibit the highest CO₂ cyclic capacity of 1.6710 mol CO₂/L.

中文翻译：

---

单乙醇胺水溶液中叔胺促进剂对燃烧后CO ₂捕集吸收/剥离性能影响的实验研究

使用多种快速筛选方法全面研究了5 M单乙醇胺（MEA）水溶液中在各种溶液再生促进剂存在下二氧化碳（CO ₂）的吸收/解吸性能。考虑的启动子是N-甲基二乙醇胺（MDEA），N，N-二甲基乙醇胺（DMEA），N，N-二乙基乙醇胺（DEEA），1-二甲基氨基-2-丙醇（1DMA2P），1-二乙基氨基-2-丙醇（1DEA2P），3-二甲基氨基-1-丙醇（3DMA1P），2-（二甲基氨基）-2-甲基-1 -丙醇（2DMA2M1P），三乙醇胺（TEA），3-（二甲氨基）-1,2-丙二醇（3DMA-1,2-PD）和3-（二乙氨基）-1,2-丙二醇（3DEA-1,2 -PD）。将这些促进剂添加到5 M MEA中的摩尔浓度设为1 mol / L。在大气压下，吸收和汽提实验分别在313.15和353.15 K下进行。特别地，为了吸收实验，将CO ₂分压控制在恒定的15kPa。此外，还确定了CO ₂的平衡溶解度，以便评估每种胺系统的驱动力。结果表明，最高的COMEA / 1DEA2P的₂平衡溶解度为0.5548 mol CO ₂ / mol胺，而MEA / 1DMA2P水性共混溶液的吸收和再生速率均达到最快，这使得MEA / 1DMA2P表现出最高的CO ₂循环容量1.6710摩尔CO ₂ / L。