Experimental Measurement and Thermodynamic Modeling of the Solubility of Carbon Dioxide in Aqueous Alkanolamine Solutions in the High Gas Loading Region
作者： Humbul Suleman , Abdulhalim Shah Maulud , Zakaria Man
DOI: 10.1007/S10765-016-2103-8
关键词: Diethanolamine 、 Aqueous solution 、 Materials science 、 Thermodynamics 、 Gibbs free energy 、 Solubility 、 Vapor–liquid equilibrium 、 Alkanolamine 、 Carbon dioxide 、 Absorption (chemistry)
摘要: The solubility of carbon dioxide in aqueous alkanolamine solutions was investigated the high gas loading region based on experimental measurements and thermodynamic modeling. An phase equilibrium study performed to evaluate absorption five representative alkanolamines, including monoethanolamine, diethanolamine, N-methyldiethanolamine, 2-amino-2-methyl-1-propanol piperazine. loadings these were determined for a wide range pressures (62.5 kPa 4150 kPa), temperatures (303.15 K 343.15 K) concentrations (2 M 4 M). results found be largely consistent with those previously reported literature. Furthermore, hybrid Kent–Eisenberg model developed correlation data points. This new incorporated an equation state/excess Gibbs energy determining high-pressure–high region. approach also used single correction parameter, which function concentration. this excellent agreement our results. Most notably, other values from
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