Published: Jan 2007
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As discussed in chapter 1, the characterization of petroleum fractions and crude oils depends on the characterization and properties of pure hydrocarbons. Calculation of the properties of a mixture depends on the properties of its constituents. In this chapter, first basic parameters and properties of pure compounds are defined. These properties are either temperature-independent or values of some basic properties at a fixed temperature. These parameters are the basis for calculation of various physical properties discussed in this book. Reported values of these parameters for more than 100 selected pure compounds are given in Section 2.2. These values will be used extensively in the following chapters, especially in Chapters 3 to determine the quality and properties of petroleum fractions. In Section 2.3, the characterization of hydrocarbons is introduced, followed by the development of a generalized correlation for property estimation that is a unique feature of this chapter. Various correlations and methods for the estimation of these basic parameters for pure hydrocarbons and narrow boiling range petroleum fractions are presented in different sections. Finally, necessary discussion and recommendations for the selection of appropriate predictive methods for various properties are presented.