Experimental And Theoretical Study On The Viscosity Of Aqueous Solution Of Alkanol Amines

Viscosities of diethanolamine (DEA)-N-methyldiethanolamine (MDEA)-water ternary mixtures were measured by using a NDJ-1rotational viscometer, with the temperature and mass concentration respectively ranging from293.15similar to343.15K and30%similar to50%. And, likewise, viscosities of monoethanolamine (MEA)-N-methyldiethanolamine were measured with the temperature and mass concentration respectively ranging from293.15similar to343.15K and20%similar to60%. The Grunberg-Nissan equation and Weiland equation were used to predict the viscosities of the binary and ternary aqueous solutions, and the calculated results agree well with the experiments. The temperature and concentration dependence of the viscosity of aqueous solutions were demonstrated based on the experimental and theoretical results.The results showed that the viscosities of the binary and ternary aqueous solutions increase monotonically with increasing concentration of aqueous solutions, yet decrease monotonically with the increasing temperature of systems. The results provide basic data and predictive models for the design and simulation of the absorption process using aqueous solutions.