DOI: 10.5176/2301-3761_CCECP18.34
Authors: Liang-De Lee, Meng-Hui Li
Abstract:
In this work a new set of data for the solubility of carbon dioxide in aqueous mixtures containing different concentrations of 1-dimethylamino-2-propanol (1-DMAP), a tertiary amine, and diethylenetriamine (DETA), a polyamine as an activator, are presented. The solubilities of carbon dioxide in aqueous 1-DMAP were also studied. The data were carefully measured in a 1.0-L stainless steel vapor-recirculation equilibrium cell at 313.2, 333.2, and 353.2 K, and pressures from 1.0 up to 1000 kPa. The measured equilibrium data were represented by a modified Kent-Eisenberg model where the parameters of the models were determined using the data from this study. The calculated solubility of carbon dioxide in aqueous mixture show good agreement with the experimental data. The results of the present study are in general with the accuracy in the carbon dioxide absorption process design calculations.
Keywords: Carbon dioxide, solubility, 1-dimethylamino-2- propanol, 1-DMAP, diethylenetriamine, DETA, Kent-Eisengberg model
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