Experimental Data, Modeling, and Correlation of Carbon Dioxide Solubility in Aqueous Solutions Containing Low Concentrations of Clathrate Hydrate Promoters: Application to CO2–CH4 Gas Mixtures
Résumé
This study presents experimental and modeling data of solubility of carbon dioxide (CO2) in aqueous solutions that contain water-soluble additives. Low concentration of tetrahydrofuran (THF) and sodium dodecyl sulfate (SDS), which are very commonly used additives in the field of clathrate hydrates research, have been considered here. A simple experimental method is proposed to determine the gas solubility. The measured data, in good agreement with those found in literature, allow developing a straightforward thermodynamic model and an easy-to-use engineering correlation for the determination of the apparent Henry constant, used to estimate the CO2 solubility in aqueous solutions containing SDS, at different temperatures and THF concentrations. Finally, as a practical application, experimental data and modeling results are compared regarding the equilibrium pressure and the gas composition obtained after solubilization of a typical CO2−CH4 gas mixture.
Mots clés
Clathrate hydrate
Engineering correlations
Equilibrium pressure
Experimental data
Experimental methods
Gas compositions
Gas solubility
Henry constants
Low concentrations
Measured data
Modeling data
Modeling results
Sodium dodecyl sulfate
Tetrahydrofurans
Thermodynamic model Engineering controlled terms: Gas mixtures
Hydration
Organic solvents
Sodium
Sodium sulfate
Solubility
Solutions Engineering main heading: Carbon dioxide
Clathrate
Gas Mixtures
Carbon Dioxide
Origine : Fichiers produits par l'(les) auteur(s)
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