Effect of acid gases on the solubility of n-propylmercaptan in 50 wt% methyl-diethanolamine aqueous solution

Javeed A. Awan (1) , Alain Valtz (1) , Christophe Coquelet (1) , Dominique Richon (1)

1 CEP/Fontainebleau

In this communication, we have measured the solubility and partition coefficient of n-propylmercaptan in 50 wt% MDEA aqueous solution at 366 K in the presence of single and mixed acid gases (CO 2 and H 2S). A static analytic method was used for performing all the measurements. Methane was used to maintain the total pressure of the system in equilibrium cell. The concentration of n-propylmercaptan in aqueous phase was in the 50-1000 ppm (mole) range. The effect of acid gas loadings on the physical and chemical solubility of n-propylmercaptan is discussed.

Mots clés: Acid gas; Partition coefficient; Propylmercaptan; Static analytic method

Domaines: Sciences de l'ingénieur [physics]; Génie des procédés

Javeed A. Awan, Alain Valtz, Christophe Coquelet, Dominique Richon. Effect of acid gases on the solubility of n-propylmercaptan in 50 wt% methyl-diethanolamine aqueous solution. Chemical Engineering Research and Design, 2008, 86 (6), pp.600-605. ⟨10.1016/j.cherd.2008.02.019⟩. ⟨hal-00880430⟩