A Predictive Equation of State for Selected Saturated Gases

Abstract

An accurate correlation for calculating the saturated specific volume of gases is obtained by nonlinear regression based on experimental data collected after a thorough survey of the literature. This equation can be used to calculate saturated specific volume of gases independently, it is also to be of great significance in building the equation of state for hydrocarbons in the gas region. The average deviation between the results obtained by this equation and experimental data is about 6% for 201 data points. For a better understanding of the equation, the saturated specific volume curves observed and predicted are compared.

Keywords

• saturated specific volume equation
• saturated vapor
• gases