Modeling of CO2 Solubility in Aqueous Potassium Lysinate Solutions at Post-Combustion CO2 Capture Conditions

3rd International Conference on Advances in Environment Research

生态环境科学;地球科学

Bian, Y.^1 ; Shen, S.^1

School of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang

050018, China^1

关键词: Absorption capacity;    Aqueous alkanolamines;    Correlated equilibria;    Developed model;    Kent-Eisenberg;    Post-combustion;    Post-combustion captures;    Thermodynamic model;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/68/1/012008/pdf
DOI  :  10.1088/1755-1315/68/1/012008

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Aqueous potassium lysinate (LysK) has been proposed as an alternative to aqueous alkanolamines for CO2capture due to fast kinetics and large absorption capacity. However, thermodynamic modeling for aqueous LysK system has not been available yet. In this work, a modified Kent-Eisenberg model with correlated equilibrium constants was developed to interpret the vapor-liquid equilibrium (VLE) data at postcombustion capture conditions. The predictions from the developed model are in good agreement with the experimental results with AAD within 19 %.