A correlation for thermodynamic properties of heavy fossil-fuel fractions

Schwarz, Barry J.; Prausnitz, John M.

doi:10.1021/ie00077a028

Cited by 3 publications

(2 citation statements)

References 22 publications

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“…For example, Cotterman and Prausnitz (1985b) proposed simple univariable correlations for determining the PHC parameters using molar mass as a single characterization variable. Schwarz and Prausnitz ( 1988) developed a correlation for the PHCT EOS parameters which uses detailed molecular structure and model compound data. Their correlation is recommended for very heavy oil fractions in which conventional characterization data is not accessible.…”

Section: Continuous Thermodynamics Treatmentmentioning

confidence: 99%

A molecular thermodynamic approach to the prediction of phase equilibria in reservoir simulation

1992

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Highly asymmetric molecules interacting during rniscible-gas processes of oil recovery are responsible for the form of the reservoir fluid phase diagrams, from which feasible displacement conditions can be chosen. In order to fit the expermental fluid phase behavior, current reservoir models employ classical equations of state which cannot easily account for the polydisperse and asymmetric nature of such systems.Using a continuous thermodynamics extension of the Simplified Perturbed Hard-Chain Theory (SPHCT) equation of state of Kim et al. (1986), an alternative molecular method for representing these equilibria in reservoir-fluid systems is presented. The approach yields results which compare well with both experimental data and classical calculation procedures. __Les molkcules hautement asymktriques qui interagissent durant les prockdks de rkcupCration du pktrole gaz miscibles sont responsables de la forme des diagrammes des phases fluides dans les rkservoirs, i partir desquels des conditions de dkplacement rkalisables peuvent &re choisies. Afin de caler le comportement expkrimental des phases fluides, les modkles de rkservoirs actuels utilisent des Cquations d'ktat classiques qui ne peuvent pas tenir compte facilement de la nature polydisperske et asymktrique de tels systkmes.Par une extension thermodynamique continue de I'kquation d'ktat de la thkorie des chaines dures perturbkes simplifike (SPHCT) de Kim et al. (1986), une nouvelle mkthode mol6culaire est introduite pour la reprksentation de ces kquilibres dam des systkmes fluides en rkservoir. Cette approche donne des rksultats qui se comparent bien tant aux donnkes expkrimentales qu'aux mkthodes de calcul classiques.

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Section: Continuous Thermodynamics Treatmentmentioning

confidence: 99%

A molecular thermodynamic approach to the prediction of phase equilibria in reservoir simulation

1992

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“…Chao and co-workers (1-3) have reported the solubilities of methane in n-eicosane, n-octacosane, and n-hexatriacontane under temperatures ranging from 373.2 to 573.2 K at pressures from 1.01 to 5.07 MPa. Schwarz and Prausnitz (4) have determined the solubilities of methane in heavy fossil-fuel fractions at temperatures to 573 K. Malone and Kobayashi (5) have measured P-T-x data of the methane + phenanthrene system at temperatures of 398-473 K and pressures to 24.2 MPa. The solubilities of methane in n-tetracosane and n-dotriacontane over the temperature range from 373.2 to 623.2 K at pressures up to 5.07 MPa have been measured (6).…”

Section: Introductionmentioning

confidence: 99%

Phase behavior of methane with carboxylic acids

Shy¹,

Yau²,

Tsai³

1993

J. Chem. Eng. Data

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Nuclear Magnetic Resonance Characterization of Petroleum

Miknis

Netzel

2000

Encyclopedia of Analytical Chemistry

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Nuclear magnetic resonance (NMR) spectroscopy is a powerful analytical method for determining the structure of an organic material. Developments in NMR have allowed high‐resolution spectra of materials in the solid state to be obtained. Thus, materials that have been intractable, such as kerogens and sedimentary organic matter, can now be characterized for their organic carbon structure. The combination of solid‐ and liquid‐state NMR makes NMR one of the most useful methods for the characterization of petroleum and its products. Petroleum is formed from the maturation of sedimentary organic matter as a result of burial over geological timescales. Everyone is familiar with the products of petroleum, i.e. gasoline, diesel fuels, chemicals, and so on. All these materials, including the petroleum source rock material, can now be studied by NMR, from the genesis of petroleum to finished products such as transportation fuels. In this article, some applications of solid‐ and liquid‐state NMR to the characterization of petroleum source rocks and petroleum end products are described.

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A correlation for thermodynamic properties of heavy fossil-fuel fractions

Cited by 3 publications

References 22 publications

A molecular thermodynamic approach to the prediction of phase equilibria in reservoir simulation

A molecular thermodynamic approach to the prediction of phase equilibria in reservoir simulation

Phase behavior of methane with carboxylic acids

Nuclear Magnetic Resonance Characterization of Petroleum

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