Temperature and pressure dependence of densities and viscosities for binary mixtures of methyl decanoate plus n-heptane

Su, Chao; Zhu, Chenyang; Lai, Tianwang; Wang, Tao; Liu, Xiang Yang; He, Maogang

doi:10.1016/j.tca.2018.10.018

Cited by 20 publications

(5 citation statements)

References 39 publications

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“…According to Treszczanowicz and Benson association model [37,38], this model is considered V m E as the combination of two terms, due to chemical contribution Mecke-Kempter type of association term and a physical contribution described by Flory theory.…”

Section: Treszczanowicz and Benson Association Model With Flory Contr...mentioning

confidence: 99%

Measurement and Modelling of Excess Molar Volume and Excess Enthalpy of n-tridecane or n-tetradecanewithdecalin By Application of PFP Theory

Touazi,

Boussaadia,

Didaoui

et al. 2023

Preprint

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The experimental measurement of density and enthalpy of mixture for two binary liquid mixtures of n-tridecane or n-tetradecane with decalin was reported in this paper. The measurements were conducted at a temperature range of 293.15 to 323.15K and at 303.15K using calorimeter C80. The mixtures were analyzed at various proportions, including the entire composition range and infinitely diluted. The excess molar volume (VE) and excess molar enthalpy (HE) of mixtures were calculated and fitted using the Redlich-Kister equation. The paper observed the expansion phenomenon for the VE at all temperatures, including over the entire composition range and infinitely diluted. Additionally, the HE exhibited endothermic behavior at the studied temperature range and composition range. The Prigogine-Flory-Patterson (PFP) theory was utilized to predict both thermodynamic properties, namely the VE and HE. The results obtained using the PFP theory were compared with those obtained using the Treszczanowicz and Benson association (TB) model for VE and with the NRTL, Wilson, and Flory models for HE. The PFP model, which employed a single fitted parameter to describe VE, demonstrated satisfactory performance in predicting VE. Conversely, the Treszczanowicz and Benson association (TB) model yielded relatively poor results in fitting VE. However, the NRTL, Wilson, PFP, and Flory models exhibited good performance in predicting HE.

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Section: Treszczanowicz and Benson Association Model With Flory Contr...mentioning

confidence: 99%

Measurement and Modelling of Excess Molar Volume and Excess Enthalpy of n-tridecane or n-tetradecanewithdecalin By Application of PFP Theory

Touazi,

Boussaadia,

Didaoui

et al. 2023

Preprint

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“…Therefore, it has been essential to study the effect of blending biodiesel with petro-diesel on the thermophysical properties of the fuel and to develop models that can accurately predict these changes. To achieve this goal, many studies have been conducted to measure the density in order to deduce the excess volumes in synthetic binary mixtures consisting of an alkane [5][6][7][8][9] or a cycloalkane [10] with fatty acid alkyl esters, or binary mixtures of petro-diesel and biodiesel under atmospheric pressure [11][12][13][14][15][16][17] or even under high pressure [18][19][20][21]. These studies revealed that synthetic mixtures exhibited either positive or negative deviations from ideal behavior depending on the asymmetry between the alkane and fatty acid alkyl ester chains.…”

Section: Introductionmentioning

confidence: 99%

Measurement and Modeling of Speed of Sound in Binary Mixtures of Methyl Oleate with n-Hexane or n-Decane Under Pressure

2023

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In this study, the speeds of sound were measured in binary liquid mixtures of methyl oleate and either n-hexane or n-decane at temperature T = 303.15 K and pressures ranging from 0.1 to 70 MPa. The data obtained from these measurements were used to calculate the excess speed of sound for these mixtures. The speed of sound molecular weight product, raised to a constant power 𝛾 was also calculated and represented as a function of molar percentage. This was done in order to determine a simple combining rule for representing the speed of sound of mixtures composed of n-alkanes and fatty acid alkyl esters.

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“…Biodiesel is one of the promising sources of environmentally friendly fuel with low sulfur content and can considerably reduce air pollutant emission and greenhouse gases. − Most of the biodiesel produced is derived from various biomass sources such as soybean, palm, canola, jatropha, sunflower, and coconut oils, which are renewable sources. Methyl octanoate is one of the key components of the biofuel produced from palm .…”

Section: Introductionmentioning

confidence: 99%

“…Pure components of the mixture ( n -hexane and methyl octanoate) are well-studied (see our previous publication). There are a series of publications on density measurements for the related mixtures such as n -heptane + FAMEs. ,− A detailed review of these papers is reported in our previous publication …”

Section: Introductionmentioning

confidence: 99%

High-Temperature and High-Pressure PVT Measurements of the Binary n-Hexane + Methyl Octanoate Mixture near the Critical Point of the Pure Solvent (n-Hexane)

2022

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PρT and phase transition properties (P S ,ρ S ,T S ) of the dilute binary mixture of n-hexane + methyl octanoate (at a concentration of 0.057 mol fraction of methyl octanoate) have been studied using the constant-volume piezometer technique. The measurements were performed along 16 liquid, vapor, and nearcritical isochores between 32.38 and 615.57 kg•m −3 over a temperature range from 291 to 633 K at pressures up to 16 MPa. Measurements were concentrated in the immediate vicinity of the critical point of pure n-hexane and liquid−gas phase transition points (bubble and dew point curve) in order to study the effect of critical fluctuations in pure n-hexane on the thermodynamic properties of the dilute mixture and to closely observe the phase transition changes and precise measurements of the (P S ,ρ S ,T S ) and critical point (P C ,ρ C ,T C ) data. The measured critical property data for the mixture were used to study the isomorphic critical behavior of strongly (isothermal compressibility K TX and isobaric heat capacity C PX ) and weakly (isochoric heat capacity C VX ) singular properties along the critical isochore and the critical isotherm. The measured PρT data were also used to estimate the values of physical meaning (theoretically important) parameters, namely, characteristic reduced temperature ( , ) 1 2 and density differences ( , ) 1 2 of the mixture. Based on the measured critical property data, the value of the Krichevskii parameter K kr has been estimated, which defines the structural (N exc )and thermodynamic (V H C , , 2 2 2 P ) properties of the dilute mixture near the critical point of the pure solvent (n-hexane).

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Temperature and pressure dependence of densities and viscosities for binary mixtures of methyl decanoate plus n-heptane

Cited by 20 publications

References 39 publications

Measurement and Modelling of Excess Molar Volume and Excess Enthalpy of n-tridecane or n-tetradecanewithdecalin By Application of PFP Theory

Measurement and Modelling of Excess Molar Volume and Excess Enthalpy of n-tridecane or n-tetradecanewithdecalin By Application of PFP Theory

Measurement and Modeling of Speed of Sound in Binary Mixtures of Methyl Oleate with n-Hexane or n-Decane Under Pressure

High-Temperature and High-Pressure PVT Measurements of the Binary n-Hexane + Methyl Octanoate Mixture near the Critical Point of the Pure Solvent (n-Hexane)

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