New Scaled-variable-reduced-coordinate Framework for Correlation of Pure Fluid Saturation Properties

Abstract

A new scaled-variable-reduced-coordinate framework for the correlation of pure fluid saturation properties was developed. Correlations valid over the entire saturation range from the triple point to the critical point were developed for correlation of vapor pressures, liquid densities and vapor densities of widely varying compounds. The correlations are consistent with scaling theories in the near-critical region, and compare favorably with the existing literature models. The three correlations were extended to generalized models to provide predictive capability with average absolute deviations within 1.5%.