Simultaneous Solubilities of CO2 and H2S in Diethanolamine Aqueous Solution

Abstract : In this paper, we present a new equipment enable to measure simultaneously solubilities of CO2 and H2S in diethanolamine aqueous solution. Its purpose is to increase the number of experimental data about these systems. Indeed, if the literature is relatively well documented on H2S or CO2 systems, solubility data concerning both acid gases are relatively scarce. The experimental approach developed in this paper is a semi-synthetic one where the vapour phase is sampled and the H2S/CO2 ratio is measured by gas chromatography. New experimental values of partial pressures of CO2 and H2S in an aqueous solution of diethanolamine are presented and compared with others from literature through a rigorous thermodynamic model.
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E. Blanchon Le Bouhelec-Tribouillois, P. Mougin, A. Barreau, I. Brunella, D. Le Roux, et al.. Simultaneous Solubilities of CO2 and H2S in Diethanolamine Aqueous Solution. Oil & Gas Science and Technology - Revue d'IFP Energies nouvelles, Institut Français du Pétrole, 2008, 63 (3), pp.363-372. ⟨10.2516/ogst:2008014⟩. ⟨hal-02002012⟩

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