Correlation for Vapor Pressure of Mixture

Ali A. Rabah, Nagi A. Osman


This paper aims to find empirical equation to calculate the vapor pressure of the mixture of crude oil from Sudan and taking advantage of some of the PVT properties that are measured experimentally. Where the data is retrieved from many fields and different wells to get the relationship between vapor pressure and properties available Emphasis was placed on thermodynamic properties have a direct effective on the vapor pressure, and has to take useful of the density of the mixture at the boiling pressure measured in the laboratory to calculate these properties using the equations are available in advance (Raiza Dubbert) and then use the method of regression analysis using the Excel program to find a relationship between vapor pressure and properties calculated on the basis of the density at the boiling of the mixture and the molecular weight of the mixture. Where the results were compared with some of the empirical equations used to calculate the vapor pressure of some of the world raw materials used other properties of non-thermodynamic properties as a function of vapor pressure. The study found positive results in dependence on the thermodynamic properties of a direct impact on the vapor pressure and through the use of some statistical metrics to compare other equations which proved the quality of the idea where the error between the measured pressure and the calculated error rate dropped

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