Prediction of Sound Speed in Natural-Gas Mixtures Using the CP-PC-SAFT Equation of State

An equation of state based on the perturbed-chain statistical associating fluid theory (PC-SAFT) for estimates of sound speed in natural-gas mixtures is successfully applied in this work. Prediction results of the speed of sound for five binary and six multicomponent systems (dataset includes 1000 d...

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Bibliographic Details
Published in:Theoretical foundations of chemical engineering 2020-11, Vol.54 (6), p.1267-1275
Main Authors: Prikhod’ko, I. V., Samarov, A. A., Toikka, A. M., Farzaneh-Gord, M.
Format: Article
Language:English
Subjects:
Carbon dioxide
Chemistry
Chemistry and Materials Science
Data points
Equations of state
Gas mixtures
Industrial Chemistry/Chemical Engineering
Interaction parameters
Natural gas
Sound
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Summary:An equation of state based on the perturbed-chain statistical associating fluid theory (PC-SAFT) for estimates of sound speed in natural-gas mixtures is successfully applied in this work. Prediction results of the speed of sound for five binary and six multicomponent systems (dataset includes 1000 data points taken from literature) containing hydrocarbons, nitrogen, and carbon dioxide in a wide range of temperatures (250–415 K) and pressures (0.1–60 MPa) are presented. The fitting parameters of the binary interaction were not used in the calculations. The results of modeling for the speed of sound are shown to be in good agreement with the literature data.
ISSN:0040-5795
1608-3431
DOI:10.1134/S004057952006010X