Phase Equilibria in Hydrocarbon Systems. Volumetric and Phase Behavior of the Methane-Cyclohexane System.

Reamer, H.; Sage, B.; Lacey, W.

doi:10.1021/i460004a014

Cited by 40 publications

(9 citation statements)

References 12 publications

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“…Significant disagreement, however, is observed at 310.9 and 344.3 K, where differences in the two data sets are on the order of 0.006 to 0.008 mole fraction, with the solubilities of Schoch et al being higher than those of the present work. Figure 2 shows comparisons with the data of Reamer et al (1958). At the lowest temperatures, disagreements of up to 0.005 are evident, while at higher temperatures differences between the two data sets are on the order of 0.003.…”

Section: Resultsmentioning

confidence: 95%

Solubility of Methane in Cyclohexane and in trans-Decalin at Temperatures from 323 to 423 K at Pressures to 9.6 MPa

1998

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Solubility data are presented for methane in the naphthenic solvents cyclohexane and trans-decalin (decahydronaphthalene) at temperatures from 323 to 423 K and pressures to 9.6 MPa. The data for methane + cyclohexane are in reasonable agreement with the measurements of Reamer et al. but differ significantly from some of the data of Schoch et al. Our new data can be described with root-mean-square errors of about 0.0005 mole fraction by the Soave−Redlich−Kwong and Peng−Robinson equations of state when a single interaction parameter per isotherm is employed in the equations. Addition of a second interaction parameter provides little improvement in the quality of representation of the data.

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Section: Resultsmentioning

confidence: 95%

Solubility of Methane in Cyclohexane and in trans-Decalin at Temperatures from 323 to 423 K at Pressures to 9.6 MPa

1998

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“…(a) CH 4 - i -C 4 : (◇) T 1 = 310.9 Κ, (□) T 2 = 344.3 Κ, (○) T 3 = 377.6 K . (b) CH 4 -cy-C 6 : (◇) T 1 = 294.3 Κ, (□) T 2 = 344.3 Κ, (○) T 3 = 444.3 K . (c) CH 4 -benzene: (◇) T 1 = 323.2 Κ, , (□) T 2 = 421.1 Κ, (○) T 3 = 461.9 K, ( + ) T 4 = 501.5 K .…”

Section: Resultsmentioning

confidence: 99%

Prediction of Vapor–Liquid Equilibrium and Thermodynamic Properties of Natural Gas and Gas Condensates

Novak

Louli

Voutsas

2019

Ind. Eng. Chem. Res.

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In this work, the performance of the UMR-PRU model, which combines the Peng−Robinson (PR) equation of state (EoS) with the original UNIFAC through the Universal Mixing Rules (UMR), is further improved and updated through the use of a Mathias−Copeman (MC) function for the attractive term parameter of the PR EoS. The new model, called UMR-MCPRU, utilizes a newly parametrized MC function for the a term, which satisfies consistency constraints that ensure its safe extrapolation to the supercritical region. Moreover, a correlation of the MC parameters of hydrocarbons with acentric factor is proposed. The MCPR EoS is then combined with the UMR mixing rules, resulting to the UMR-MCPRU model. All binary interaction parameters relevant to natural gas mixtures are determined by fitting binary vapor−liquid equilibrium data. UMR-MCPRU is used to predict vapor−liquid equilibrium, critical points, liquid dropouts, densities (ρ) and derivative thermodynamic properties, namely isobaric (c P ) and isochoric (c V ) heat capacity, Joule−Thomson coefficients (μ JT ) and speed of sound (w), of natural gas and gas condensate mixtures. The Peneloux volume translation is also examined, wherever relevant. The results reveal that UMR-MCPRU, coupled with the Peneloux translation, is able to accurately describe both phase equilibria and other important thermodynamic properties of natural gas and gas condensate mixtures.

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“…Local equilibrium (7) was assumed-that is, the physical properties of the fluid at any point are those found at equilibrium. Recent data upon the volumetric behavior of the methane-cyclohexane system (20) and partial volumetric behavior of methane and cyclohexane in that system (7) were employed to determine the requisite partial volumetric and phase behavior.…”

Section: Methods and Apparatusmentioning

confidence: 99%

Diffusion Coefficients in Hydrocarbon Systems. Methane in the Liquid Phase of the Methane-Cyclohexane System.

Reamer¹,

Sage²

1959

J. Chem. Eng. Data

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Phase Equilibria in Hydrocarbon Systems. Volumetric and Phase Behavior of the Methane-Cyclohexane System.

Cited by 40 publications

References 12 publications

Solubility of Methane in Cyclohexane and in trans-Decalin at Temperatures from 323 to 423 K at Pressures to 9.6 MPa

Solubility of Methane in Cyclohexane and in trans-Decalin at Temperatures from 323 to 423 K at Pressures to 9.6 MPa

Prediction of Vapor–Liquid Equilibrium and Thermodynamic Properties of Natural Gas and Gas Condensates

Diffusion Coefficients in Hydrocarbon Systems. Methane in the Liquid Phase of the Methane-Cyclohexane System.

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