Application of the LCVM model to systems containing organic compounds and supercritical carbon dioxide

Yakoumis, Iakovos; Vlachos, Konstantinos; Kontogeorgis, Georgios M.; Coutsikos, Philippos; Kalospiros, Nikolaos S.; Tassios, Dimitrios P.; Kolisis, Fragiskos N.

doi:10.1016/s0896-8446(96)90003-0

Cited by 35 publications

(23 citation statements)

References 58 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…ii) when calculated and experimental solute concentrations in the gas phase are used to analyze the accuracy of a model, the differences between experimental and correlated values are presented using different defi nitions of errors and deviations, defi nitions that conceal the true error between those experimental and calculated values (Valderrama and Alvarez, 2004). Weng et al (1994), Yakoumis et al (1996) (1)…”

Section: Randd Notementioning

confidence: 99%

Correct Way of Reporting Results when Modelling Supercritical Phase Equilibria using Equations of State

Valderrama

Álvarez

2008

Can. J. Chem. Eng.

View full text Add to dashboard Cite

Dans cet article, on a analysé différentes formes trouvées dans la littérature pour exprimer l'erreur entre les variables d'équilibre de phases calculées utilisant des modèles d'équation d'état et des données expérimentales. Des données PTxy de pressions élevées pour des mélanges binaires contenant du dioxyde de carbone supercritique sont utilisées comme études de cas. La pratique commune d'utiliser la concentration de solvant au lieu de la concentration de soluté pour analyser la précision d'un modèle thermodynamique est examinée de manière critique. Plusieurs paramètres statistiques habituellement employés dans la littérature scientifi que sont considérés comme trompeurs et on montre qu'ils ne donnent pas une indication claire du degré de précision des résultats des modèles.

show abstract

Section: Randd Notementioning

confidence: 99%

Correct Way of Reporting Results when Modelling Supercritical Phase Equilibria using Equations of State

Valderrama

Álvarez

2008

Can. J. Chem. Eng.

View full text Add to dashboard Cite

show abstract

“…The LCVM model uses the t-mPR EoS coupled with the original UNIFAC G E model and introduces a new mixing rule, a linear combination of the Vidal and Michelsen ones, for parameter a in the attractive term of the EoS. The original UNIFAC interaction parameter table used with LCVM has been enhanced to include gas/gas, gas/CH 2 , gas/ACH and gas/ACCH 2 parameters for the gases CO 2 , CH 2 , C 2 H 6 , N 2 and H 2 S. The use of the LCVM model for this purpose is justified by its successful performance in the VLE prediction for asymmetric systems (Apostolou et al, 1995;Spiliotis et al, 1994aSpiliotis et al, , 1994bVoutsas et al, 1996;Yakoumis et al, 1996).…”

Section: Interaction Parameters Of H S/hydrocarbon Binary Systemsmentioning

confidence: 99%

Prediction of Phase Equilibria and Volumetric Behavior of Fluids with High Concentration of Hydrogen Sulfide

Stamataki

Magoulas

2000

Oil & Gas Science and Technology - Rev. IFP

View full text Add to dashboard Cite

show abstract

“…In the solubility cell, the pressure of CO 2 gas dropped by times as the gas chemically reacts and dissolves in the solvent which then brought to an equilibrium state. e residual number of moles of CO 2 or undissolved gas were calculated by the tmPR-LCVM-UNIFAC equation of state/excess Gibbs energy model [36], using partial pressure of carbon dioxide, P RS at equilibrium, using…”

Section: Methodsmentioning

confidence: 99%

VLE of Carbon Dioxide-Loaded Aqueous Potassium Salt of L-Histidine Solutions as a Green Solvent for Carbon Dioxide Capture: Experimental Data and Modelling

Syalsabila

Maulud

Suleman³

et al. 2019

International Journal of Chemical Engineering

View full text Add to dashboard Cite

In this study, vapour-liquid equilibrium of CO2-loaded aqueous potassium salt of L-histidine was studied for a wide range of temperature (313.15–353.15 K), pressure (150–4000 kPa), and solvent concentrations (1–2.5 molar). The experimental results show that L-histidine has an excellent absorptive capacity for carbon dioxide. When compared to conventional solvent (monoethanolamine) and amino acid salt (potassium L-lysinate) at similar process conditions, L-histidine has superior absorption capacity. Moreover, modified Kent–Eisenberg model was used to correlate the VLE of the studied system with excellent agreement between the model and experimental values. The model exhibited an AARE% of 7.87%, which shows that it can satisfactorily predict carbon dioxide solubilities in aqueous potassium salt of L-histidine at other process conditions. Being a biological component in origin, almost negligibly volatile, and highly resistant to oxidative degradation, L-histidine offers certain operational advantages over other solvents used and has a promising potential for carbon dioxide capture.

show abstract

Application of the LCVM model to systems containing organic compounds and supercritical carbon dioxide

Cited by 35 publications

References 58 publications

Correct Way of Reporting Results when Modelling Supercritical Phase Equilibria using Equations of State

Correct Way of Reporting Results when Modelling Supercritical Phase Equilibria using Equations of State

Prediction of Phase Equilibria and Volumetric Behavior of Fluids with High Concentration of Hydrogen Sulfide

VLE of Carbon Dioxide-Loaded Aqueous Potassium Salt of L-Histidine Solutions as a Green Solvent for Carbon Dioxide Capture: Experimental Data and Modelling

Contact Info

Product

Resources

About