Solubility of CO2 in (H2O+piperazine) and in (H2O+MDEA+piperazine)

被引：102
|
作者：
Kamps, APS [1 ]
Xia, JZ [1 ]
Maurer, G [1 ]
机构：
[1] Univ Kaiserslautern, Lehrstuhl Tech Thermodynam, D-67653 Kaiserslautern, Germany
来源：
AICHE JOURNAL | 2003年 / 49卷 / 10期
关键词：
D O I：
10.1002/aic.690491019
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
A thermodynamic model for describing the phase equilibrium for the system CO2 + methyldiethanolamine + water has been extended, allowing for the presence of piperazine. Model parameters are estimated from new experimental results for the solubility of carbon dioxide in aqueous solutions of piperazine (for piperazine molalities up to 4 mol per kilogram of water, temperatures between 313 and 393 X and pressures up to about 9.6 MPa). The model is tested by comparing predicted and experimental carbon dioxide solubilities in aqueous mixtures of both amines (2 molal MDEA + 2 molal piperazine, at 353 K, and pressures up to about 6 4 MPa).
引用
收藏
页码：2662 / 2670
页数：9
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