Measurements of Isothermal Vapor-Liquid Equilibrium and Critical Point-Based Perturbed-Chain Statistical Association Fluid Theory Phase Behavior Modeling of the Propane + Phenol and Tetracosane + Propane/n-Butane Mixtures

Vener F. Khairutdinov, Ilnar Sh Khabriev, Farid M. Gumerov, Talgat R. Akhmetzyanov, Lenar Yu Yarullin, Ludmila Yu Sabirova, Ilya Polishuk, Ilmutdin M. Abdulagatov

פרסום מחקרי: פרסום בכתב עתמאמרביקורת עמיתים

5 ציטוטים ‏(Scopus)

תקציר

The isothermal vapor-liquid equilibrium (VLE, pressure, temperature, and composition of coexisting vapor and liquid phases, PTxy) was directly determined using a high-pressure optical cell for binary propane + phenol and ternary tetracosane + propane/n-butane systems. Measurements were carried out at three selected isotherms of 383.15, 403.15, and 423.15 K at pressures from 0.94 to 14.5 MPa for propane + phenol and 403.15, 423.15, and 443.15 K at pressures up to 7.5 MPa for tetracosane + propane/n-butane systems. The critical property data (TC and PC) for both mixtures have been derived from the measured VLE data. Based on the initial slopes of the critical lines (shape of the critical lines), the qualitative behavior (pure- and mixture-like behavior) of the isochoric heat capacity (CVx, weak singular property), isobaric heat capacity (CPx), and isothermal compressibility (KTx, strong singular property) of the propane + phenol binary mixture near the critical point has been studied. It is demonstrated that the simplest version of critical point-based perturbed-chain statistical association fluid theory neglecting the complex molecular background of phenol yields reasonably accurate predictions of its pure compound properties. With the value of k12 obtained by fitting the present data of propane + phenol, this model yields reliable predictions for VLE in the systems of other n-alkanes, benzene, carbon monoxide, and nitrogen.

שפה מקוריתאנגלית
עמודים (מ-עד)138-150
מספר עמודים13
כתב עתJournal of Chemical and Engineering Data
כרך68
מספר גיליון1
מזהי עצם דיגיטלי (DOIs)
סטטוס פרסוםפורסם - 12 ינו׳ 2023

טביעת אצבע

להלן מוצגים תחומי המחקר של הפרסום 'Measurements of Isothermal Vapor-Liquid Equilibrium and Critical Point-Based Perturbed-Chain Statistical Association Fluid Theory Phase Behavior Modeling of the Propane + Phenol and Tetracosane + Propane/n-Butane Mixtures'. יחד הם יוצרים טביעת אצבע ייחודית.

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