Measurement and prediction of the density of aqueous ternary mixtures of methyldiethanolamine and diethanolamine at temperatures from 25°c to 80°c

摘要: Densities have been measured for mixed aqueous solutions of N-methyldiethanolamine (MDEA) and diethanolamine (DEA) at 25, 30,40,50, 60,70, 80°C. The compositions the ternary are near 30 mass% solute, because industrial applications absorption acid gases. The isopycnotic (same density) method, predicting densities multicomponent systems 25°C has used to predict present non-electrolyte other temperatures. Predicted observed density values in good agreement (<0.06% error). method also some sea salt mixtures temperatures ranging from 5 95°C. Again predicted (generally <0.1% error). On a mesure la masse volumique de aqueuses mixtes 30, 40, 50, 60, 70 et 80 °C. Les des ternaires sont solutes pres 30% en masse, raison industrielles pour l'absorption gaz acides. On utilise methode isopycnotique (masse egale) qui ete mise au point predire systemes aqueux multicomposants 25°C, non electrolytiques considerees d'autres valeurs predites les observees montrent un bon accord (marge d'erreur <0,06%). On egalement eu recours cette melanges sel mer allant 95 La encore, concordantes generalement < 0,1%).