Determination of the PVT Behavior

Experimental determination of PVT data is time-consuming and costly. Such data, therefore, are available for a small number of compounds only, mostly light hydrocarbons and some inorganic gases (Section 8.5). 

Limited data - basically critical properties and some vapor pressures -are available, however, for a rather large number of compounds. The most comprehensive compilations of such data are given by Reid et al (1987) and by Daubert and Danner (1985,1986). Critical property values for some selected compounds are presented in Appendix C. 

In the typical case, therefore, the volumetric behavior of a fluid is estimated using the available critical property values. This task is accomplished through two approaches  

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