Study on Carbamate Stability in the AMP/CO2/H2O System from 13C-NMR Spectroscopy

被引：55
|
作者：
Ciftja, Arlinda F. [1 ]
Hartono, Ardi [1 ]
da Silva, Eirik F. [2 ]
Svendsen, Hallvard F. [1 ]
机构：
[1] Norwegian Univ Sci & Technol, N-7491 Trondheim, Norway
[2] SINTEF, Dept Chem Mat, N-7465 Trondheim, Norway
来源：
10TH INTERNATIONAL CONFERENCE ON GREENHOUSE GAS CONTROL TECHNOLOGIES | 2011年 / 4卷
关键词：
AMP; NMR; Carbamate Stability; Serically Hindered Amines; NMR-SPECTROSCOPY; CARBON-DIOXIDE; SOLUBILITY; AMINES; CO2;
D O I：
10.1016/j.egypro.2011.01.096
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：
Qualitative and quantitative C-13 NMR studies were performed on 30 wt % aqueous solution of 2-amino-2-methyl-1-propanol (AMP) with different amount of CO2 at 25 degrees C. The results suggested that the main species in this system are: AMP/AMPH(+), AMPCO(2)(-) and HCO3-/CO32-. The carbamate was observed at low loading and the carbamate stability constant was calculated based only on the experimental species concentration from NMR analysis. Based on the liquid phase speciation from NMR, the carbamate stability constant on mol fraction basis was found to be about 0.47 at 25 degrees C. (C) 2011 Published by Elsevier Ltd.
引用
收藏
页码：614 / 620
页数：7
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