Present work includes research about the influence of the type of amino group using one or two amine molecules on carbon dioxide chemical absorption using aqueous solutions of alkanolamines and diamines. A comparison of chemical absorption processes using aqueous solutions of two individual diamines (3‐(dimethylamino)propan‐1‐amine and 1,3‐diaminopropane) and a mixture of amines (3‐amino‐1‐propanol and 3‐(dimethylamino)propan‐1‐ol) is reported including absorption rate curves, carbon dioxide loading, reaction mechanism or solvent regeneration to obtain useful information about the quality of each solvent for carbon dioxide separation. In general, amines blend of 3‐amino‐1‐propanol and 3‐dimethylamino‐1‐propanol, have shown a better behavior than their individual amines. Diamines and mainly 3‐dimethylamino propylamine that presents primary and tertiary amine groups in its structure, have led similar results. After these studies, 3‐dimethylamino propylamine, can be considered an appropriated amine to industrial carbon dioxide absorption process. © 2018 American Institute of Chemical Engineers AIChE J, 64: 2702–2710, 2018

中文翻译：

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基于二胺和胺混合物的溶剂对二氧化碳的化学吸收

目前的工作包括研究使用一种或两种胺分子对氨基的类型对使用链烷醇胺和二胺水溶液的二氧化碳化学吸收的影响。使用两种单独的二胺（3-（二甲基氨基）丙烷-1-胺和1,3-二氨基丙烷）和胺类混合物（3-氨基-1-丙醇和3-（二甲基氨基）的水溶液进行化学吸收过程的比较报告了propan-1-ol），包括吸收速率曲线，二氧化碳载量，反应机理或溶剂再生，以获取有关用于二氧化碳分离的每种溶剂质量的有用信息。通常，由3-氨基-1-丙醇和3-二甲基氨基-1-丙醇混合而成的胺比其各自的胺具有更好的性能。在其结构中存在伯胺和叔胺基团的二胺和主要为3-二甲基氨基丙胺的结果相似。经过这些研究，3-二甲基氨基丙胺可以被认为是工业二氧化碳吸收过程中合适的胺。©2018美国化学工程师学会AIChE J，64：2702–2710，2018