Carbon dioxide absorption in aqueous solution of potassium glycinate + 2-amino-2-methyl-1-propanol as new absorbents
作者： Mohammad Ehsan Hamzehie , Hesam Najibi
DOI: 10.1039/C6RA09600J
关键词: Carbon dioxide 、 Correlation coefficient 、 Analytical chemistry 、 Mass fraction 、 Absorption (chemistry) 、 Solubility 、 Atmospheric temperature range 、 Potassium 、 Chromatography 、 Chemistry 、 Aqueous solution
摘要: Aqueous solutions of potassium glycinate and mixtures with 2-amino-2-methyl-1-propanol (AMP) are investigated as new absorbents for carbon dioxide absorption. The equilibrium solubility in the aforementioned aqueous measured 0.01, 0.04 0.1 overall mass fractions, pressure range 2.9–1382.4 kPa temperature 293.15–323.15 K. Results show that loading capacity has an inverse relation solution concentration highest occurs at low concentrations glycinate. extended Deshmukh–Mather model is used to predict experimental data. values mean square error (MSE), average relative deviation (ARD) correlation coefficient (R2) 0.0576, 9.0561 0.9859, respectively. In addition, artificial neural network (ANN) also developed estimate CO2 studied solutions. there good agreements between data predicted values. MSE, ARD R2 optimal trained ANN 0.0256, 5.4290 0.9946, From economic perspective stability considerations presence O2, a 1.0% wt + 3.0% AMP blend, considered optimal.
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