Abstract

HOYOS, B.. Generalized liquid volume shifts for the pengrobinson equation of state for the pengrobinson equation of state for C1 to C8 hydrocarbons. Lat. Am. appl. res. [online]. 2004, vol.34, n.2, pp.83-89. ISSN 0327-0793.

A new generalized correction equation for specific volume of liquid hydrocarbons is proposed. The equation can be used with the Peng- Robinson equation of state (PR) in a wide temperature range and does not require additional parameters for each substance. The equation has been developed for normal hydrocarbons from methane to octane and the obtained results when it is applied to other substances are analyzed. A comparison is also made with the equation proposed by Peneloux et al. (1982) resulting, in all cases, in a better performance of the equation proposed here.

Keywords : Specific volume; Liquid hydrocarbons; Peng-Robinson equation of state.

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