The solubility of H2S and CO2 in a diethanolamine solution at low partial pressures

The solubility of H2S, CO2 and their mixtures in a 2.0 kmol m−3 aqueous solution of diethanolamine has been determined at 40°C and 100°C at partial pressures of the acid gases between 0.003 and 6.5 kPa. The results have been compared with values calculated by a method of prediction. On a determine, aux temperatures de 40° et 100°C, la solubilite de l'anhydride carbonique, de l'hydrogene sulfure et leurs melanges dans une solution aqueuse de diethanolamine (2, O kmol m−3 DEA). On a fait varier les pressions partielles entre 0,003 et 6,5 kPa. On a compare les resultats avec ceux obtenus par une methode de prevision.