Effect of alcohol chain length on carbon dioxide absorption into aqueous solutions of alkanolamines

被引：6
|
作者：
Yamada, Hidetaka [1 ]
Chowdhury, Firoz A. [1 ]
Matsuzaki, Yoichi [2 ]
Goto, Kazuya [1 ]
Higashii, Takayuki [1 ]
Kazama, Shingo [1 ]
机构：
[1] Res Inst Innovat Technol Earth RITE, Chem Res Grp, 9-2 Kizugawadai, Kyoto 6190292, Japan
[2] Nippon Steel & Sumitomo Met Corp, Adv Technol Res Lab, Chiba 2938511, Japan
来源：
GHGT-11 | 2013年 / 37卷
关键词：
amine absorbent; CO2; loading; hydorogen bonding; NMR; AMINE SOLUTIONS; CO2; CAPTURE; ABSORBENTS; KINETICS;
D O I：
10.1016/j.egypro.2013.05.136
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
To identify structural factors of alkanolamine molecule which influence the CO2 absorption properties, we systematically investigated the CO2 absorption into aqueous solutions of 2-(ethylamino) ethanol (EAE), 3-ethylamino-1-propanol (EAP), 4-ethylamino-1-butanol (EAB), 2-(propylamino) ethanol (PAE) and 2-(butylamino) ethanol (BAE). It was shown that the CO2 loading exhibited a clear dependence on the alcohol chain length by quantitative C-13 nuclear magnetic resonance measurements. In contrast, it did not differ significantly among EAE, PAE and BAE. The results support the idea that the hydroxyl functional group of alkanolamine has a specific effect on the CO2 absorption reactions in the aqueous solutions by intramolecularly interacting with the central amino moiety. (C) 2013 The Authors. Published by Elsevier Ltd.
引用
收藏
页码：499 / 504
页数：6
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