Fluid phase behavior of asymmetric synthetic mixture plus gas: Experimental and modeling studies

被引：0

作者：

Medeiros, Hugo Andersson Dantas ^{[1
]}

Bazile, Jean-Patrick ^{[2
]}

Feitosa, Filipe Xavier ^{[1
]}

Sant'Ana, Hosiberto Batista de ^{[1
]}

Daridon, Jean-Luc ^{[2
]}

机构：

[1] Univ Fed Ceara, Grp Pesquisa Termofluidodinam Aplicada, Dept Engn Quim, Ctr Tecnol, Campus Pici,Bloco 709, BR-60445760 Fortaleza, CE, Brazil

[2] Univ Pau & Pays Adour, Lab Fluides Complexes & Leurs Reservoirs, UMR 5150, E2S UPPA,CNRS,LFCR, F-64000 Pau, France

来源：

JOURNAL OF SUPERCRITICAL FLUIDS | 2025年 / 219卷

关键词：

Phase behavior; Synthetic system; Fluid-fluid; Solid-fluid; ISOTHERMAL FLASH PROBLEM; BUBBLE-POINT PRESSURES; CARBON-DIOXIDE PLUS; EQUATION-OF-STATE; PENG-ROBINSON EOS; VOLUME TRANSLATION; ORTHO-TERPHENYL; SYSTEMS; EQUILIBRIA; K(IJ);

D O I：

10.1016/j.supflu.2025.106519

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

This study investigates the high-pressure phase behavior of synthetic systems formed by the blending of a ternary heavy liquid mixture: 2,2,4,4,6,8,8 heptamethylnonane + dodecylcyclohexane + o-terphenyl - with light gas mixtures. Two different gas mixtures were examined: methane + ethane + propane and methane + ethane + propane + carbon dioxide. Five global compositions were studied for the first gas+liquid system and seven for the second, with temperatures ranging from T = 293.15 K to 373.15 K and pressures up to p = 70 MPa. One hundred and eighteen pressure transitions were measured, including fluid-fluid and solid-fluid transitions. The Peng-Robinson equation of state, with the fully predictive mixing rule PPR78, was used to predict the observed fluid-fluid transitions, showing qualitatively good agreement with experiments.

引用

页数：11

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