A simple and fast method for estimation of water content in alkanolamine solutions by refractometric method

Aqueous alkanolamine solution are widely used for the removal of acid gases such as CO2 and H2S from gas streams. Examples of such streams include natural gases , synthesis gases from the gasification of coal and heavy oils, and tail gases from sulfur plants and petroleum chemical plants in industry amount of water decreases because of heat of process and it causes decrement in efficiency of amine plant for gas sweetening process and we should estimate water content of amine solutions. in this paper we have report the new experimental data for n of various aqueous alkanolamine solutions at 293.15 K and atmospheric pressure. these alkanolamine consist of triethanolamone TEA, mthyl diethanolamine MDEA, diethanolamine DEA , monoethanolamine MEA, and diisopropanolamine DIPA. by using of this method first we obtan calibration curve for alkanolmanie solutions and then we able to estimate the water content of solutions in few seconds. the analysis of alkanolamine solutions was carried out with a refractometer model KEM620 A and results show that we can estimate amount of water in aqueous alkanolamine solutions in short time by refratometric method.

کلیدواژه ها:

refractive index ، alkanolamines ، gas sweetening ، water content