Measurement through a gas stripping technique of Henry's law constants and infinite dilution activity coefficients of propyl mercaptan, butyl mercaptan, and dimethyl sulfide in methyldiethanolamine (1) + water (2) with w1 = 0.25 and 0.35

Christophe Coquelet (1) , Sylvain Laurens (1) , Dominique Richon (1)

1 CEP/Fontainebleau

Reported herein are determinations of Henry's constants and limiting activity coefficients obtained by an inert gas stripping method for propyl mercaptan, butyl mercaptan, and dimethyl sulfide in the temperature range (293 to 343) K at atmospheric pressure in water and in (0.25 and 0.35) wt % methyldiethanolamine (MDEA) aqueous solutions. They are supplemented by additional data from the literature at a mass fraction of 0 and 0.5 MDEA. The influence of the solvent is discussed considering the heat of absorption for the different amine concentrations.

Mots clés: Amines; Atmospheric pressure; Gas absorption; Inert gases; Sulfur compounds; Aqueous solutions; Butyl mercaptans; Dimethyl sulfides; Gas stripping techniques; Heat of absorptions; Henry's constants; Henry's Law constants

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

Christophe Coquelet, Sylvain Laurens, Dominique Richon. Measurement through a gas stripping technique of Henry's law constants and infinite dilution activity coefficients of propyl mercaptan, butyl mercaptan, and dimethyl sulfide in methyldiethanolamine (1) + water (2) with w1 = 0.25 and 0.35. Journal of Chemical and Engineering Data, 2008, 53 (11), pp.2540-2543. ⟨10.1021/je800349p⟩. ⟨hal-00798965⟩