Critical line of (xenon + carbon dioxide)

Martynets, V. G.; Kuskova, N. V.; Matizen, É. V.; Kukarin, V. F.

doi:10.1006/jcht.1998.0438

Cited by 9 publications

(1 citation statement)

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“…The only study of the critical line available until now is the work of Martynets et al They reported experimental ( p, ρ ,T,x ) data for the critical curve of { x Xe + (1 − x )CO 2 } but restricted to the region near the critical point of pure carbon dioxide, with x between 0 and 4.2067 × 10 -2 .…”

Section: Introductionmentioning

confidence: 99%

Vapor−Liquid Equilibrium and Critical Line of the CO₂ + Xe System. Critical Behavior of CO₂ + Xe versus CO₂ + n-Alkanes

et al. 2000

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An acoustic technique was applied to investigate the binary critical behavior of the system CO2 + Xe. The critical line of this binary system exhibits a temperature minimum, suggesting the existence of azeotropic behavior. The compositions of the studied mixtures were chosen in order to define the minimum temperature locus (p = 6.04 MPa, T = 282.34 K and at x(CO2) = 0.3622). The results were correlated with the Peng−Robinson equation of state using conventional mixing and combining rules. Additionally, the same equation was used to correlate published data on CO2 with the five lower normal alkanes. The adjustable interaction energy and size parameters for CO2 + Xe are in line with those from CO2 + C2H6 up to CO2 + C5H12, while those for CO2 + CH4 deviate significantly.

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Section: Introductionmentioning

confidence: 99%

Vapor−Liquid Equilibrium and Critical Line of the CO₂ + Xe System. Critical Behavior of CO₂ + Xe versus CO₂ + n-Alkanes

et al. 2000

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Comparative Study on Critical Points of Carbon Dioxide-Based Binary Mixtures

Sun

Tian

et al. 2022

Int J Thermophys

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A Numerical Algorithm for Calculating Critical Points and Its Application to Predictive Mixture Models and Binary CO$$_2$$ Mixtures

Rath,

Gampe,

Jäger

2023

Int J Thermophys

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The use of supercritical fluids in technical applications requires an accurate knowledge of their critical points. For mixtures, these can deviate significantly and without a linear dependency from the critical points of its individual pure components. Since even small amounts of admixture can have noticeable effects, this not only concerns blends of targeted compositions, but also unintentional mixtures for example caused by impurities. Within this work, a method for the calculation of critical points is presented which focuses on numerical robustness promoting a fast and reliable generation of results. Implemented into the thermodynamic property software TREND, with its mixture modeling capabilities, the method allows a flexible combination of different equations of state and mixture models which also includes predictive approaches. Against the background of an increasing relevance of mixtures based on supercritical CO$$_2$$ 2 (sCO$$_2$$ 2 ) for energy applications, critical lines are calculated and compared against experimental results for selected sCO$$_2$$ 2 -based mixtures recently considered for power plant applications. Herein, several combinations of equations of state (EoS) and mixture models are compared. Critical lines are calculated for the first time in this work with the combination of the multi-fluid mixture model with excess Gibbs energy ($$g^\text {E}$$ g E ) models. It was found that the critical lines calculated with the combination of the multi-fluid mixture model with the $$g^\text {E}$$ g E -model COSMO-SAC yields good predictive results for the investigated CO$$_2$$ 2 mixtures.

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Critical line of (xenon + carbon dioxide)

Cited by 9 publications

References 1 publication

Vapor−Liquid Equilibrium and Critical Line of the CO₂ + Xe System. Critical Behavior of CO₂ + Xe versus CO₂ + n-Alkanes

Vapor−Liquid Equilibrium and Critical Line of the CO₂ + Xe System. Critical Behavior of CO₂ + Xe versus CO₂ + n-Alkanes

Comparative Study on Critical Points of Carbon Dioxide-Based Binary Mixtures

A Numerical Algorithm for Calculating Critical Points and Its Application to Predictive Mixture Models and Binary CO$$_2$$ Mixtures

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Critical line of (xenon + carbon dioxide)

Cited by 9 publications

References 1 publication

Vapor−Liquid Equilibrium and Critical Line of the CO2 + Xe System. Critical Behavior of CO2 + Xe versus CO2 + n-Alkanes

Vapor−Liquid Equilibrium and Critical Line of the CO2 + Xe System. Critical Behavior of CO2 + Xe versus CO2 + n-Alkanes

Comparative Study on Critical Points of Carbon Dioxide-Based Binary Mixtures

A Numerical Algorithm for Calculating Critical Points and Its Application to Predictive Mixture Models and Binary CO$$_2$$ Mixtures

Contact Info

Product

Resources

About

Vapor−Liquid Equilibrium and Critical Line of the CO₂ + Xe System. Critical Behavior of CO₂ + Xe versus CO₂ + n-Alkanes

Vapor−Liquid Equilibrium and Critical Line of the CO₂ + Xe System. Critical Behavior of CO₂ + Xe versus CO₂ + n-Alkanes