Comparison of CP-PC-SAFT and PC-SAFT with k12 = 0 and PPR78 in Predicting Binary Systems of Hydrocarbons with Squalane, n-dodecylbenzene, cis-decalin, Tetralin, and Naphthalene at High Pressures

Asaf Chiko, Ilya Polishuk

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

This study compares accuracies of PC-SAFT and its critical point-based revision (CP-PC-SAFT) with k12 = 0 along with the predictive 1978 Peng-Robinson EoS (PPR78) in estimating the available high-pressure phase equilibria data in binary systems of methane, ethylene, ethane, propane, and n-hexane with heavy branched, alkylbenzoic, bicyclic aliphatic and aromatic substances represented by squalane, n-dodecylbenzene, cis-decalin, tetralin, and naphthalene. Predictions of the pure compound properties of the considered heavy substances are evaluated as well. It is found that some data were predicted more accurately by CP-PC-SAFT and others-by Peng- Robinson EoS and PPR78. At the same time, the overall performance of PC-SAFT in predicting these data is found inferior in comparison with two other considered approaches.

Original languageEnglish
Pages (from-to)15805-15816
Number of pages12
JournalIndustrial and Engineering Chemistry Research
Volume60
Issue number43
DOIs
StatePublished - 3 Nov 2021

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