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Equation of State Modeling of High-pressure, High-temperature Hydrocarbon Density Data by Kun Liu; Yue Wu; Mark A. McHugh; Hseen Baled; Robert M. Enick; Bryan D. Morreale is a Engineering article available to read on EtoBox.

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Experimental densities are reported for n-pentane, n-octane, cyclooctane, 2,2,4-trimethylpentane, ndecane, and toluene to ∼280 MPa and ∼250 • C. These densities are in good agreement with available literature data that typically cover lower pressure and temperature ranges than those reported here. The data are modeled with the Peng-Robinson (PR) and Soave-Redlich-Kwong (SRK) cubic equations, the temperature-dependent, volume-translated SRK equation, the temperature-and density-dependent SRK equation, and the SAFT and PC-SAFT equations. Mean absolute percentage deviation (MAPD) values between densities calculated with the PR equation and literature data are 4.55 for n-pentane, 2.91 for n-octane, 3.68 for cyclooctane, 3.98 for 2,2,4-trimethylpentane, 5.58 for n-decane, and 1.99 for toluene. With the exception of 2,2,4-trimethylpentane, these MAPD values are substantially better than those obtained with the SRK and modified SRK equations. Although both SAFT-based models have MAPD values significantly lower than those with the PR equation, the PC-SAFT equation provides the lowest MAPD values.

Who reads Equation of State Modeling of High-pressure, High-temperature Hydrocarbon Density Data?

Author

Kun Liu; Yue Wu; Mark A. McHugh; Hseen Baled; Robert M. Enick; Bryan D. Morreale

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0896-8446)

Published

2010

Language

EN

Field

Engineering (Physical Sciences)