Prediction of Liquefied Natural Gas Density Using Peng–Robinson Equation of State

Abstract

The most suitable equation of state has been generalized to permit calculation of the densities of natural gas by using critical temperature, critical pressure, and accentric factor of the natural gas. Adaptation of the Peng–Robinson equation offers flexibility for estimating density for a wide range of pressure and temperature. This method provides accurate and computationally reliable perdition of they compressibility factor values