Carbon capture and management plays an important role in the development of new technologies to mitigate anthropogenic global warming. In this work, for the first time, the kinetics of CO₂ with aminobutanol (AB) using a stopped-flow method are presented. The temperature changed from 293 to 313 K for a total amine concentration up to 0.3 mol/L. The kinetics data were analyzed using both zwitterion and termolecular reaction mechanisms with a preference to the zwitterion mechanism. AB was found to react with CO₂ (aq) with k₂ (M^–1 s^–1) = 2.93 × 10⁹ exp(−4029.9/T (K)) with an estimated activation energy of 33.51 kJ/mol. Compared to other popular amines, CO₂ reaction with aminobutanol has faster kinetics than that of CO₂ with diethanolamine (DEA) and 2-amino-2-methyl-1-propanol (AMP) but slower than that with monoethanolamine (MEA). The Brønsted relationship between the rate constant (k₂) and pK_a values was found to predict well the rate constant with an average absolute deviation (AAD) of 6.1%.

中文翻译：

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使用停止流技术，二氧化碳与2-氨基-1-丁醇在水溶液中的反应动力学

碳捕获和管理在开发新技术以减轻人为的全球变暖中起着重要作用。在这项工作中，首次提出了采用停流法的氨基丁醇（AB）与CO ₂的动力学关系。对于总胺浓度最高为0.3 mol / L，温度从293变为313K。动力学数据使用两性离子和分子反应机制进行了分析，偏向于两性离子机制。AB被发现与CO反应₂与（水溶液）ķ ₂（M ^-1小号^-1）= 2.93×10 ⁹ EXP（-4029.9 / Ť（K）），估计活化能为33.51 kJ / mol。与其他流行的胺相比，CO ₂与氨基丁醇的反应动力学要比与CO ₂与二乙醇胺（DEA）和2-氨基-2-甲基-1-丙醇（AMP）的动力学快，但比与单乙醇胺（MEA）的动力学要慢。发现速率常数（k ₂）和p K _a值之间的布朗斯台德关系很好地预测了速率常数，平均绝对偏差（AAD）为6.1％。