PREDICTION OF THE PHASE STATE OF A NATURAL CONDENSED GAS-MIXTURE

We have examined how the type of data on the fractional composition of debutanized gas condensate and the selection of a state equation can influence the prediction of the phase state of a natural condensed gas mixture. We have attempted to have the fractional composition of the mixture as found by single-pass evaporation approach that revealed by fractional distillation. The advantage of the vacancy quasichemical eq uation of states over the Redlich-Kwong-Soave equation in the calculat ion of phase equilibria has been shown.