Modeling the volumetric properties of mixtures involving ionic liquids using perturbed hard-sphere equation of state

Hosseini, Sayed Mostafa; Moghadasi, Jalil; Papari, Mohammad Mehdi; Nobandegani, Fatemeh Fadaei

doi:10.1016/j.molliq.2011.02.007

Cited by 24 publications

(13 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…1, and PHS EOS [1][2][3], Table 3 has been presented. It shows the average absolute deviation percent (AAD%) of the calculated densities of several phosphonium-and imidazolium-based ILs from literature values [28][29][30][31][32][33][34][35].…”

Section: Resultsmentioning

confidence: 99%

“…1 consisting of B 2 (T), α(T), and b(T) must be evaluated. For this purpose, several correlation procedures have been developed in the literature via heat of vaporization [14], boiling point constants [15], critical point constants [1][2][3], and surface tension data [12,13,16]. In this work, we aim to use the correlation based on the surface tension and liquid density at room temperature as two scaling parameters [19,20]:…”

Section: Theorymentioning

confidence: 99%

“…Recent works by Hosseini et al [1][2][3] led to the development of a perturbed hard-sphere EOS for predicting the pressurevolume-temperature (PVT) properties of several classes of pure ionic liquids. Our objective in this work was to present a more reliable equation of state than previous works.…”

Section: Introductionmentioning

confidence: 99%

“…In the case of ILs, we have previously used their critical point data estimated by the work of Valderrama and Rojas [17] to scale the temperature-dependent parameters of a perturbed hard-sphere equation of state (PHS EOS) [1][2][3]. Since the critical point of ILs cannot be determined experimentally (there are only several estimations for this property in the literature), we replace the surface tension instead of critical data.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Improved equation of state for ionic liquids using surface tension

Hosseini

Sharafi

2011

Ionics

View full text Add to dashboard Cite

The major objective of this work was the development of a reliable model to describe volumetric properties of ionic liquids (ILs). In this regard, we have applied the Ihm-Song-Mason equation of state (EOS) to some phosphonium-and imidazolium-based ILs. Three temperature-dependent parameters in the equation of state have been scaled based on the surface tension and the liquid density at room temperature. In order to improve the predictive power of the mentioned EOS for ILs, we have proposed using a simple modification. We have taken 1,228 experimental points to show the reliability of the improved EOS. The comparison of predicted densities with literature data over a broad range of temperature, 293-472 K, and pressures up to 200 MPa led to encouraging results. The average absolute deviation of calculated densities from literature values was found to be 0.75%.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Theorymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Improved equation of state for ionic liquids using surface tension

Hosseini

Sharafi

2011

Ionics

View full text Add to dashboard Cite

show abstract

“…Aparicio et al [5] reviewed the available predictive models as well as experimental data reported in literature for the thermophysical properties and especially density and PVT behavior of ionic liquids. Further, a perturbed hard-sphere equation of state has been employed to predict the pressure-volume-temperature properties of some pure and mixture of ionic liquids [6][7][8][9]. Also, they predicted the volumetric properties of ILs using Ihm-Song-Mason (ISM) [10] and Tao-Mason [11] equations of state.…”

Section: Introductionmentioning

confidence: 99%

Thermophysical properties of ionic liquids and their mixtures from a new equation of state

Akbari

Alavianmehr

Ardakani

et al. 2017

Ionics

View full text Add to dashboard Cite

In our previous work, a perturbed hard-trimersphere equation of state (PHTS EOS) was developed for modeling the phase equilibria of pure ionic liquids (ILs) (M.M. Alavianmehr et al., Ionics 22 (2016) 2447-2459. In this work, we have successfully extended the model to the mixtures of IL + IL and IL + solvent. Two temperaturedependent parameters appearing in the EOS are correlated with two microscopic scaling constants σ, the effective hardsphere diameter, and ε, the non-bonded interaction energy. The overall average absolute deviation (AAD) of the estimated densities from the literature data using the proposed model with and without non-additivity parameter (λ ij ) was found to be 0.44 and 0.79%, respectively. A modified Enskog equation and rough hard-sphere (RHS) theory are combined with our proposed equation of state to calculate the viscosity coefficient of ionic liquids and their mixtures. Finally, from the results obtained, a linear relation between logarithm of surface tension and viscosity property of ionic liquid was developed.

show abstract

Room Temperature Ionic Liquids

Marcus

2016

Ionic Liquid Properties

View full text Add to dashboard Cite

Modeling the volumetric properties of mixtures involving ionic liquids using perturbed hard-sphere equation of state

Cited by 24 publications

References 24 publications

Improved equation of state for ionic liquids using surface tension

Improved equation of state for ionic liquids using surface tension

Thermophysical properties of ionic liquids and their mixtures from a new equation of state

Room Temperature Ionic Liquids

Contact Info

Product

Resources

About