thanks, I was aware of the limits of application for KD as they are reported in the operating manual of simulator, KD is the suggested model for hydrocarbons+water.
fortunately in this project I have a very low (negligible) amount of water, with water I use the mixing rule by Kabadi and Danner which is avaiable in our simulator but usually I have no feedback confirming the accuracy, the point is that there is not much time for testing the real consistency...
Paolo,
I didn't suppose that the addition of 6% H2S could generate that complex behaviour, I found several papers of Michelsen discussing phase equilibria with several examples and many of these examples do include H2S,
a interesting reading,
Alfonso
I am getting strange results when printing a phase envelope of a natural gas mixture from our simulator (package Peng Robinson), when I add 6% H2S to a C1 60% C2 11% C3 C4 C6 C8 N2 CO2 the dew and bubble lines don't connect but go up and down in a strange fashion, also I am not able to get the...