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Prediction of gas solubilities using the LCVM equation of state/excess Gibbs free energy model
This item is provided by the institution :
National Technical University of Athens
Repository :
Digital Library of National Technical University of Athens | Dspace@NTUA
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ΕΚΤ item type
Journal part
(EN)
Scientific article
(EN)
EKT year
1995
(EN)
EKT historical period
Title
Prediction of gas solubilities using the LCVM equation of state/excess Gibbs free energy model (EN)
Creator
Kalospiros, NS (EN)
Tassios, DP (EN)
Apostolou, DA (EN)
Description
A recently developed EoS/GE model, the LCVM one, is applied to the prediction of Henry constants of nine gases (O2, N2, CO2, CO, H2S, CH4, C2H6, C3H8, C4H10) in a wide range of pure and mixed solvents, including heavy hydrocarbons, polar solvents, and water. When not available, LCVM interaction parameters are estimated by correlating vapor-liquid equilibrium data. LCVM yields very good predictions for Henry constants in pure solvents, with typical errors less than 8%; it also performs very satisfactorily in the prediction of high-pressure vapor-liquid equilibria. On the other hand, widely-used EoS/GE models, such as PSRK and MHV2, are shown to result in progressively poorer behavior with increasing system asymmetry. Finally, LCVM predictions for Henry constants in mixed solvents are also satisfactory, especially when combined with the method of Catte et al. The results presented here, combined with those from previous ones, render LCVM a valuable tool for predicting vapor-liquid equilibria. © 1995 American Chemical Society. (EN)
Type
journalArticle (EN)
Subject
MIXTURES (EN)
UNIFAC (EN)
Engineering, Chemical (EN)
PRESSURES (EN)
CONSTANTS (EN)
SOLVENTS (EN)
EXTENSION (EN)
VAPOR-LIQUID-EQUILIBRIA (EN)
Provider
National Technical University of Athens
Repository / collection
Digital Library of National Technical University of Athens | Dspace@NTUA
Subcollections
Κεντρική Βιβλιοθήκη Ε.Μ.Π.
Ιδρυματικό Αποθετήριο
Δημοσιεύσεις μελών Δ.Ε.Π. σε περιοδικά
Journal
Industrial and Engineering Chemistry Research (EN)
Language
English
Issued
1995 (EN)
Identifier
http://hdl.handle.net/123456789/11629
34 (EN)
ISI:A1995QL37100031 (EN)
0888-5885 (EN)
3 (EN)
957 (EN)
948 (EN)
Publisher
AMER CHEMICAL SOC (EN)
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