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

页码：499 / 504

页数：6

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