High pressure solid–fluid and vapour–liquid equilibria in model hyperbaric fluids: the system methane+tetracosane+triacontane

Machado, J.J.B.; Loos, Theo W. de

doi:10.1016/j.fluid.2004.09.007

Cited by 9 publications

(2 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Among others, it is worth mentioning several previous works which studied vapour-liquid phase equilibria of ternary alkane mixtures, such as Urlic et al [12] who reported values of phase equilibrium data of the ternary system methane/n-butane/n-decane, also Reamer et al [13][14][15][16][17] studied the ternary systems methane/n-butane/n-decane and methane/n-propane/n-decane and Kariznovi et al [18,19] reported vapour-liquid equilibrium data of the methane/n-decane/n-tetradecane and methane/ndecane/n-hexadecane systems. Moreover Cebola et al [20] studied the phase behaviour of the ternary mixture methane/n-hexane/n-tetradecane, Gregorowicz et al [21] determined liquid-liquidvapour equilibrium of the ternary system methane/n-propane/n-eicosane and Machado and de Loos [22] determined phase equilibrium data on the ternary system methane/tetracosane/triacontane.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

High pressure phase equilibrium of ternary and multicomponent alkane mixtures in the temperature range from (283 to 473) K

Regueira

Liu

Wibowo

et al. 2017

Fluid Phase Equilibria

View full text Add to dashboard Cite

 Users may download and print one copy of any publication from the public portal for the purpose of private study or research.  You may not further distribute the material or use it for any profit-making activity or commercial gain  You may freely distribute the URL identifying the publication in the public portal If you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim.

show abstract

Section: Accepted Manuscriptmentioning

confidence: 99%

High pressure phase equilibrium of ternary and multicomponent alkane mixtures in the temperature range from (283 to 473) K

Regueira

Liu

Wibowo

et al. 2017

Fluid Phase Equilibria

View full text Add to dashboard Cite

show abstract

“…However, Ghanaei et al, by assuming constant slopes for the change of fusion and solid–solid transition temperatures of pure paraffins by increasing pressure, developed the following formulation for the Poynting term: On the basis of Ghanaei et al, with an accurate estimate and regardless of the carbon number of the pure alkane the values of 4.5 MPa·K –1 and 3.5 MPa·K –1 can be assigned to the slope of change of their saturation pressure with temperatures of fusion, , and solid–solid transition, , for all heavy alkanes. To obtain this the authors have assessed a large database of experimental fusion and solid–solid transition temperatures of pure alkanes at high pressure reported in the literature. ,− On the basis of the current study evaluations and some work in the literature this assumption is indeed precise (it will be shown later on, utilized in a different scheme). This way they removed the need for parameter δ defined in the work of Nasrifar and Fani-Kheshty .…”

Section: Methodsmentioning

confidence: 96%

A New Thermodynamic Model for Paraffin Precipitation in Highly Asymmetric Systems at High Pressure Conditions

Mahabadian

Chapoy

Tohidi

2016

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

The predictions of the crystallization temperature and the amount of precipitates of paraffin waxes at high pressure conditions may be inaccurate using existing thermodynamic models. This is mainly due to the lack of experimental data on the molar volume of solid paraffins at high pressures. This inaccuracy is even more pronounced for mixtures of high asymmetry. The present work provides a new accurate modeling approach for solid–fluid equilibrium (SFE) at high pressure conditions, more specifically, for highly asymmetric systems. In contrast to the conventional methods for high pressure SFE modeling which define a Poynting molar volume correction term to calculate the paraffin solid phase nonideality at high pressures, the new method exploits the values of thermophysical properties of importance in SFE modeling (temperatures and enthalpies of fusion and solid–solid transition) evaluated at the high pressure condition using a new insight into the well-known Clausius–Clapeyron equation. These modified parameters are then used for evaluation of the fugacity in the solid phase at higher pressure using the fugacity of pure liquid at the same pressure and applying the well-established formulation of the Gibbs energy change during melting. Therefore, the devised approach does not require a Poynting correction term. The devised approach coupled with the well-tested UNIQUAC activity coefficient model is used to describe the nonideality of the solid phase. For the fluid phases, the fugacities are obtained with the SRK EoS with binary interaction parameters calculated with a group contribution scheme. The model is applied to highly asymmetric systems with SFE experimental data over a wide range of pressures. It is first used to predict crystallization temperature in binary systems at high pressures and then verified by applying it on multicomponent mixtures resembling intermediate oil and natural gas condensates.

show abstract

High-pressure fluid-phase equilibria: Experimental methods and systems investigated (2000–2004)

Dohrn

Peper

Fonseca

2010

Fluid Phase Equilibria

231

View full text Add to dashboard Cite

High pressure solid–fluid and vapour–liquid equilibria in model hyperbaric fluids: the system methane+tetracosane+triacontane

Cited by 9 publications

References 27 publications

High pressure phase equilibrium of ternary and multicomponent alkane mixtures in the temperature range from (283 to 473) K

High pressure phase equilibrium of ternary and multicomponent alkane mixtures in the temperature range from (283 to 473) K

A New Thermodynamic Model for Paraffin Precipitation in Highly Asymmetric Systems at High Pressure Conditions

High-pressure fluid-phase equilibria: Experimental methods and systems investigated (2000–2004)

Contact Info

Product

Resources

About