Density, Refractive Index, Viscosity, and Surface Tension of Binary Mixtures of <i>exo</i>-Tetrahydrodicyclopentadiene with Some <i>n</i>-Alkanes from (293.15 to 313.15) K

Zhang, Lingling; Guo, Yihang; Xiao, Juan; Gong, Xianjie; Fang, Wenjun

doi:10.1021/je200757a

Cited by 57 publications

(28 citation statements)

References 16 publications

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“…The data obtained by Lyusternik and Zhdanov 51 in the gaseous region between 503 and 681 K as well as by Giller and Drickamer 52 near the freezing point of about 262 K up to 293 K cannot be used for data comparison here. More recent experimental viscosity data for n-C 12 H 26 at or close to saturation conditions are generally determined only around ambient temperature below 323 K 53,54 or agree with our present results within combined uncertainties. 55 Further recently published experimental data from Yang et al 56 were obtained over an extended temperature range from 303 to 673 K in the compressed liquid phase at 5 MPa.…”

Section: Summary Of Dynamic Viscosity and Surface Tensionsupporting

confidence: 85%

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Liquid Viscosity and Surface Tension of n-Dodecane, n-Octacosane, Their Mixtures, and a Wax between 323 and 573 K by Surface Light Scattering

et al. 2017

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The present contribution provides experimental data for the liquid viscosity and surface tension of n-alkane based model systems at temperatures up to 573 K. The fundamental advantage of the used surface light scattering (SLS) method lies in its application in thermodynamic equilibrium without calibration in a contactless way. The investigated systems comprise the pure fluids n-dodecane (n-C 12 H 26 ) and n-octacosane (n-C 28 H 58 ), their binary mixture at a n-C 12 H 26 mole fraction of about 0.3, and the commercially available hydrocarbon wax SX-70 representing a multicomponent mixture of n-alkanes with a broad chain length distribution. For the first time, it could be demonstrated that the SLS method can simultaneously access the liquid viscosity and surface tension of such medium-to long-chained n-alkane systems close to saturation conditions over a broad temperature range from 323 to 573 K. Typical measurement uncertainties of 2% based on a coverage factor k = 2, i.e., a level of confidence of more than 95%, were obtained. Over the entire temperature range, a simple polynomial equation for the dynamic viscosity and a modified van der Waals equation for the surface tension represent the measured data of the pure and binary systems well. The present investigations improve the data situation for hydrocarbon systems in the high-temperature range where no measurement results exist in literature.

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Section: Summary Of Dynamic Viscosity and Surface Tensionsupporting

confidence: 85%

“…Most experimental σ data for n -C 12 H 26 are generally determined only around ambient temperature below 323 K ,, and are thus not used for data comparison here. In total, three data sources providing surface tension data of n -C 12 H 28 above 323 K were found and are discussed below.…”

Section: Resultsmentioning

confidence: 99%

Liquid Viscosity and Surface Tension of n-Dodecane, n-Octacosane, Their Mixtures, and a Wax between 323 and 573 K by Surface Light Scattering

et al. 2017

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“…21 The uncertainties of surface tension and surface tension deviation in the present work both are ± 0.1 mN·m −1 .…”

Section: ■ Introductionmentioning

confidence: 46%

Densities, Viscosities, Refractive Indices, and Surface Tensions of Binary Mixtures of 2,2,4-Trimethylpentane with Several Alkylated Cyclohexanes from (293.15 to 343.15) K

Zhang

Yue

et al. 2015

J. Chem. Eng. Data

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Densities and viscosities have been measured over the whole composition ranges for the binary mixtures of 2,2,4-trimethylpentane with methylcyclohexane, ethylcyclohexane, or n-butylcyclohexane at temperatures T = (293.15 to 343.15) K and atmospheric pressure. Meanwhile, the refractive indices and surface tensions were measured at T = (293.15 to 323.15) K and T = (293.15 to 308.15) K, respectively. The excess molar volumes, V m E , the viscosity deviations, Δη, and the surface tension deviations, Δγ, for these binary systems are calculated and fitted to the Redlich−Kister equation, and the regression coefficients and the standard deviations of the fittings are given. All of the V m E , Δη and Δγ values are negative over the whole composition range for these systems. The values of Δn D for these binary mixtures are all small, even negligible. These results may be useful for the development of the hydrocarbon fuels. ■ INTRODUCTIONAviation fuels contain large portions of iso-paraffinic compounds. 1,2 JP-7 (a jet fuel developed by the U.S. Air Force for use in supersonic aircraft) consists of greater than 25 % of isoparaffinic species. 3 Violi and Eddings note that iso-paraffinic is one of the predominant components in jet kerosene, accounting for as much as 29% of the fuel. 4 Further researches indicate that the synthetic and alternative fuels can have higher content of iso-paraffins than the current logistic fuels. 5 Consequently, it seems prudent that iso-paraffins should be taken into account to develop surrogate fuel and study fuel performance in detail. 2,2,4-Trimethylpentane (iso-octane) has been economically important as a primary reference for measuring the antiknock qualities of gasoline and aviation fuel for years. 6 Fuels are seen to be composed primarily of straight-chained and branched paraffins, but cycloparaffins are also significant. For example, up to 20 % of Jet-A fuel, the commercial equivalent of JP-8 (a kerosene-based fuel used widely by the US Military) is composed of cycloalkanes. In addition to the role as a traditional fuel, cycloparaffin can also serve as coolant for hypersonic aircraft. 7 As described above, iso-paraffinics and cycloparaffins are predominant components in jet kerosene. 5,8−11 The investigations on the fundamental properties for binary systems of iso-paraffin with cycloparaffin seem to be of scientific and practical interest. Physicochemical properties such as viscosity, density, surface tension, refractive index, vapor-pressure and excess Gibbs energy for 2,2,4-trimethylpentane + cyclohexane system have been reported. 12−14 Some properties for methylcyclohexane +2,2,4-trimethylpentane system are also studied in the literature. 15−19 Nevertheless, there is still a lack of some detailed information about the systems of 2,2,4-trimethylpentane with alkylated cyclohexane.In the present work, densities, viscosities, refractive indices, and surface tensions for the binary mixtures of 2,2,4-trimethylpentane with several alkylated cyclohexanes, such as methylcyclohexane, ethylcyclo...

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“…; blue open left triangle, Jasper and Kring; blue open right triangle, Koefoed and Villadsen; yellow open star, Schmidt et al; pink asterisk, Korosi and Kovats; yellow open pentagon, Azizian and Bashavard; green ×, Mejia et al. ; green plus sign, Zhang et al; red bold dash, Cumicheo et al, Lago et al, Prak et al and Rodriguez-Escontrela …”

Section: Results and Discussionmentioning

confidence: 99%

Surface Tension Measurements by Pendant Drop Method of 10 Pure Long-Chain Alkanes and Alcohols for Temperatures up to 573.15 K

Yang

2021

J. Chem. Eng. Data

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As the main components of synthetic hydrocarbons obtained using gas to liquid conversion technologies, long-chain alkanes and alcohols play an important role in the Fischer−Tropsch process. So the reliable surface tension data of these fluids are significant for the understanding and eventual improvement of synthesis efficiency. In the present study, a new high temperature and high pressure pendant drop apparatus was developed and tested with n-heptane at temperatures from (303.15 to 473.15) K, and a good agreement between the experimental data and the literature data could be found. With the new apparatus, the experimental surface tension measurements of ndodecane, n-hexadecane, 2,2,4,4,6,8,8-heptamethylnonane, n-octacosane, squalane, 1-dodecanol, 1,12-dodecandiol, 2-butyl-1-octanol, 1-hexadecanol and 2hexyl-1-decanol were performed under saturation conditions over the temperature range from 303.15 K (348.15 K for n-octacosane and 1-hexadecanol, 373.15 K for 1,12-dodecandiol) to 573.15 K. The combined expanded uncertainties of temperature and surface tension with a level of confidence of 0.95 (k = 2) are estimated to be 20 mK and less than 1.5% over the entire temperature, respectively. Furthermore, the surface tension data were correlated with the modified van der Waals equation, and the average absolute deviations are within 0.65%. On the basis of the correlations, the comparisons of our experimental data with the available literature data were discussed, and the satisfactory agreement revealed that the experimental results of this work were reliable and reasonable.

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Density, Refractive Index, Viscosity, and Surface Tension of Binary Mixtures of exo-Tetrahydrodicyclopentadiene with Some n-Alkanes from (293.15 to 313.15) K

Cited by 57 publications

References 16 publications

Liquid Viscosity and Surface Tension of n-Dodecane, n-Octacosane, Their Mixtures, and a Wax between 323 and 573 K by Surface Light Scattering

Liquid Viscosity and Surface Tension of n-Dodecane, n-Octacosane, Their Mixtures, and a Wax between 323 and 573 K by Surface Light Scattering

Densities, Viscosities, Refractive Indices, and Surface Tensions of Binary Mixtures of 2,2,4-Trimethylpentane with Several Alkylated Cyclohexanes from (293.15 to 343.15) K

Surface Tension Measurements by Pendant Drop Method of 10 Pure Long-Chain Alkanes and Alcohols for Temperatures up to 573.15 K

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