Calculating surface tension of light hydrocarbons and their mixtures

Porteous, William

doi:10.1021/je60066a001

Cited by 8 publications

(5 citation statements)

References 8 publications

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“…Data for the latter quantities are not plentiful but were found for a representative group of the gases treated here. Indeed, for the 17 liquefied gases for which surface tension data were found [16][17][18][19]140] there is a linear relationship between the surface tension and the solubility parameter at the boiling point as follows:…”

Section: Correlationsmentioning

confidence: 99%

“…Koenhen and Smolders [141] reported the relationship between the dispersion solubility parameter and the index of Figure 2: The surface tension of liquefied gases at their boiling points, /mN m −2 , plotted against their solubility parameters, H / MPa 1/2 . The symbols are for the surface tension from [16,17] e, from [18] , and [19] , and for the outlier (CH 3 ) 2 O, [18].…”

Section: Correlationsmentioning

confidence: 99%

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Solubility Parameters of Permanent Gases

Marcus

2016

Journal of Chemistry

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The solubility parameters,δH(Tb), of nonreactive permanent gases at their boiling pointsTb(<290 K) are calculated from individually discussed values of their molar enthalpies of vaporization and densities obtained from the literature. These values are tabulated and where available the coefficients of the temperature dependence expressionδH(T)are also tabulated. The trends noted in theδH(Tb)values are dealt with and the values are compared with those reported in the literature and derived from the solubilities of the gases in various solvents. TheδH(Tb)values are shown to correlate linearly with the depths of the potential wells (attractive interaction energies,ε/kB) for binary collisions of the gaseous molecules and with the surface tensions,σ(Tb), of the liquefied gases.

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Section: Correlationsmentioning

confidence: 99%

Section: Correlationsmentioning

confidence: 99%

Solubility Parameters of Permanent Gases

Marcus

2016

Journal of Chemistry

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Section: Introductionmentioning

confidence: 99%

“…17 In other cases, liquefied natural gas is used as a fuel, and then the values of the surface tension of alkanes at high pressures are needed to characterize it. 10,28 Similarly, the knowledge of vapor−liquid equilibrium properties and surface tension of n-alkanes and alcohols is also required to study additives commonly used in fuels. [13][14][15]29,30 The surface tension of alkanes is also important in removing hydrocarbons from liquid effluents 31,32 and in the study of carbon dioxide capture and storage technologies.…”

Section: Introductionmentioning

confidence: 99%

“…Surface tension plays a fundamental role in the injection and atomization of fuels in engines. ,,,− Thus, n -decane is chosen as a surrogate of jet fuels, and its surface tension influences this fuel’s characteristics . In other cases, liquefied natural gas is used as a fuel, and then the values of the surface tension of alkanes at high pressures are needed to characterize it. , Similarly, the knowledge of vapor–liquid equilibrium properties and surface tension of n -alkanes and alcohols is also required to study additives commonly used in fuels. − ,, …”

Section: Introductionmentioning

confidence: 99%

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Pressure–Surface Tension–Temperature Equation of State for n-Alkanes

Mulero

Cachadiña

Cardona

et al. 2022

Ind. Eng. Chem. Res.

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Herein, the geometric similitude concept is applied to propose a cubic equation that relates surface tension, saturation pressure, and temperature for n -alkanes. The input properties for each fluid are the molecular mass, pressure, temperature, and compressibility factor at the critical point. The model is applied to temperatures below 0.93· T c (critical point temperature). A total of 2429 surface tension values have been selected for 32 n -alkanes. The parameters of the model have been obtained with a fit of the surface tension values for 19 pure n -alkanes that are randomly chosen. Then, it is tested for the other 13 pure n -alkanes and used to predict the surface tension for 11 binary and 4 ternary mixtures. These predictions are compared with the reported experimental data. For pure n -alkanes, the overall absolute average deviation is 2.4%, including the correlation and testing sets. No additional adjustable coefficients are used for mixtures, yielding an overall absolute average deviation of 2.98% for the binary systems and 7.97% for the ternary ones. The results show that the model is accurate enough for predictions and that the highest deviations are due to the lack of agreement in the values of surface tension of pure fluids obtained from different sources.

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Prediction of surface tension of athabasca bitumen

1985

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Athabasca bitumen was characterized by dividing it into sixteen pseudo components. Using mean boiling point, molecular weight and specific gravity data, the critical properties of the pseudo components were estimated from available correlations. Two approaches for the prediction of bitumen surface tension were investigated. It was found that the surface tensions predicted by the principle of corresponding states and the Rice‐Teja correlations were in general agreement with the published experimental data. In addition, these models successfully predicted the effect of temperature on surface tension at temperatures greater than about 60°C.

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Calculating surface tension of light hydrocarbons and their mixtures

Cited by 8 publications

References 8 publications

Solubility Parameters of Permanent Gases

Solubility Parameters of Permanent Gases

Pressure–Surface Tension–Temperature Equation of State for n-Alkanes

Prediction of surface tension of athabasca bitumen

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