抄録
Generalized interaction parameters for the Peng-Robinson equation of state were applied to the multicomponent system which contains CO2 and normal paraffins. The Minimum Variable Newton Raphson method was employed for the bubble point pressure calculation. The effective estimation of the initial values for it was presented. As results of prediction, good correspondence was observed for the bubble point pressure but rather poor result was observed for the density, which could be inherent in the Peng-Robinson equation. The convergence property was also studied and it showed that both the Minimum Variable Newton-Raphson method and the initial value estimation method were quite efficient.
