The Riedel vapor pressure correlation and multi-property optimization

Hogge, Joseph; Giles, Neil F.; Knotts, Thomas A.; Rowley, Richard L.; Wilding, W. Vincent

doi:10.1016/j.fluid.2016.08.032

Cited by 6 publications

(15 citation statements)

References 394 publications

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“…The same applies to the parameters of the vapor pressure equation. In the context of the assignment of the two terms in the Z function (eq (7)) to a temperature range, an analysis of the graphs can provide information.…”

Section: Resultsmentioning

confidence: 99%

“…Compressibility factor for fluoromethane (R41) vapor vs. reduced temperature. The total compressibility factor is the sum of the first and second term according to eq (7). Term 1 is mainly responsible for the description of the critical temperature range.…”

Section: Resultsmentioning

confidence: 99%

“…The minimum of the objective function from the six parameter estimates sets the value of the optimal parameter Θ 𝑝4,𝑜𝑝𝑡 . Hogge et al [7] have tested this equation for the temperature range considered in our work here on many compounds of different structure and they found it is a very good equation.…”

Section: Introductionmentioning

confidence: 88%

“…The next step is to detect the outliers. For this purpose, it is assumed that the Riedel vapor pressure equation [7], also known as the DIPPR 101 equation, is the "true" function describing the vapor pressure data, since it describes the vapor pressure data very well compared to other known equations (see list of equations in ref [2]).…”

Section: B11 Vapor Pressure Datamentioning

confidence: 99%

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Improvements for a fully consistent description of the new semi-empirical vapor density model for pure compounds

Kud¹,

Coquelet

2022

Fluid Phase Equilibria

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 88%

Section: B11 Vapor Pressure Datamentioning

confidence: 99%

See 2 more Smart Citations

Improvements for a fully consistent description of the new semi-empirical vapor density model for pure compounds

Kud¹,

Coquelet

2022

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“…The Riedel equation , for fitting and predicting the temperature dependence of vapor pressure is where P vap is the vapor pressure, T is the temperature, and A – E are fitting coefficients. Recently, it was found that changing the value of E , the fifth parameter, can improve both the vapor-pressure fit and the thermodynamic consistency with other propertiesespecially enthalpy of vaporization and liquid and ideal-gas heat capacities . The Riedel equation was originally published with a method to predict vapor pressure for compounds without experimental data .…”

Section: Introductionmentioning

confidence: 99%

New Vapor-Pressure Prediction with Improved Thermodynamic Consistency using the Riedel Equation

Hogge

Giles

Rowley

et al. 2017

Ind. Eng. Chem. Res.

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Vapor pressure, heat of vaporization, liquid heat capacity, and ideal-gas heat capacity for pure compounds between the triple point and critical point are important properties for process design and optimization. These thermophysical properties are related to each other through temperature derivatives of thermodynamic relationships stemming from a temperature-dependent vapor-pressure correlation. The Riedel equation has been considered to be an excellent and simple choice among vapor-pressure correlating equations [Velasco et al. J. Chem. Thermodyn. 2008, 40 (5), 789−797] but requires modification of the final coefficient to provide thermodynamic consistency with thermal data [Hogge et al. Fluid Phase Equilib. 2016, 429, 149−165]. New predictive correlations with final coefficients in integer steps from 1 to 6 have been created for compounds with limited or no vaporpressure data, based on the methodology used originally by Riedel [Chem. Ing. Tech. 1954, 26 (2), 83−89]. Liquid heat capacity was predicted using these vapor-pressure correlations, and the best final coefficient values were chosen based on the ability to simultaneously represent vapor pressure and liquid heat capacity. This procedure improves the fit to liquid heat-capacity data by 5−10% (average absolute deviation), while maintaining the fit of vapor-pressure data similar to those of other prediction methods. Additionally, low-temperature vapor-pressure predictions were improved by relying on liquid heat-capacity data.

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Density, viscosity, vapor pressure and isobaric vapor-liquid equilibria for 2, 4-dichlorofluorobenzene and 2, 6-dichlorofluorobenzene

Yang

Han

et al. 2020

Fluid Phase Equilibria

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The Riedel vapor pressure correlation and multi-property optimization

Cited by 6 publications

References 394 publications

Improvements for a fully consistent description of the new semi-empirical vapor density model for pure compounds

Improvements for a fully consistent description of the new semi-empirical vapor density model for pure compounds

New Vapor-Pressure Prediction with Improved Thermodynamic Consistency using the Riedel Equation

Density, viscosity, vapor pressure and isobaric vapor-liquid equilibria for 2, 4-dichlorofluorobenzene and 2, 6-dichlorofluorobenzene

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