Ternary phase equilibria for acetic acid-water mixtures with supercritical carbon dioxide

Briones, Jose A.; Mullins, J. C.; Thies, Mark C.; Kim, B.-U.

doi:10.1016/0378-3812(87)85026-4

Cited by 165 publications

(81 citation statements)

References 8 publications

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“…[46]; ○, Briones et al [47]; △ Bamberger et al [30]; ▽, Bando et al [48]; ◇, Zawisza and Malesinska [29]; ☆, Zelvenskii [41]; ＋, Fischer [49]; ╳, Wiebe and Gaddy [42]; ⊕, Smith et al [50]; ■, Coan and King [43]; , Sidorov [51]; , this work. [46]; ▽, Sako et al [52]; ○, Gillespie and Wilson [44]; □, Zawisza and Malesinska [29]; ＋, Zelvenskii [41]; ☆, Coan and King [43]; ◇, Smith et al [50]; ⊕, Wiebe and Gaddy [42]; ╳ Sidorov et al [51]; ■, this work.…”

Section: Discussionmentioning

confidence: 99%

Measurement and modeling of the phase behavior of the (carbon dioxide+water) mixture at temperatures from 298.15K to 448.15K

Hou¹,

Maitland²,

Trusler³

2013

The Journal of Supercritical Fluids

167

103

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Section: Discussionmentioning

confidence: 99%

Measurement and modeling of the phase behavior of the (carbon dioxide+water) mixture at temperatures from 298.15K to 448.15K

Hou¹,

Maitland²,

Trusler³

2013

The Journal of Supercritical Fluids

167

103

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“…Data are very rare for the non aqueous phase. The data source is the following: Bamberger et al (2000), Briones et al (1987), Dhorn et al (1993), Drummond (1981), D'Souza et al (1998), Gillepsie and Wilson (1982), King et al (1992), Malinin and Savelyeva (1972), Malinin and Kurovskova (1975), Matous et al (1969), Müller et al (1988), Nighswander et al (1989), Prutton and Savage (1945), Sako et al (1991), Takenouchi and Kennedy (1964), Tödheide and Franck (1963), Gaddy (1939, 1941), Zawisza and Malesinska (1981), Zel'vinskii (1937). Values are reported in Table 3.…”

Section: Experimental Data Of the H 2 O-co 2 -Nacl Systemmentioning

confidence: 99%

Modelling of Liquid-Vapour Equilibria in the H₂O-CO₂-Nacl and H₂O-H₂S-NaCl Systems to 270°C

Dubessy

Tarantola

Sterpenich

2005

Oil & Gas Science and Technology - Rev. IFP

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Résumé -Modélisation des équilibres liquide-vapeur dans les systèmes H 2 O-CO 2 -NaCl et H 2 O-H 2 S-NaCl jusqu'à 270 °C -Cet article présente un modèle thermodynamique dissymétrique d'équi-libre liquide-vapeur dans les systèmes H 2 O-CO 2 -NaCl et H 2 O-H 2 S-NaCl en dessous du point critique de l'eau (250°C pour H 2 S, 270°C pour CO 2 ). La phase vapeur est décrite par une équation d'état cubique. L'eau et les composants gazeux de la phase aqueuse liquide sont respectivement décrits par la loi de Raoult et la loi de Henry combinées avec un modèle de Redlich-Kister de solutions régulières, permettant de calculer les coefficients d'activité. Après une analyse de la base de données expérimen-tales, plus de 80 % pour CO 2 et 92 % pour H 2 S des pressions calculées des isoplèthes concernant les solutions aqueuses diffèrent de moins de 5% des données expérimentales, ce qui est comparable à l'incertitude expérimentale. Bien que le modèle ne soit pas optimisé sur la composition de la phase vapeur, les compositions calculées sont correctes au-dessus de 100 °C. L'effet du sel est modélisé en combinant le modèle de Pitzer pour le calcul du coefficient d'activité de l'eau dans la solution aqueuse et une extension de la loi de Setchenow. Les hypothèses à la base de ce modèle induisent sa validité pour des pressions inférieures à 300 bar. Abstract -Modelling of Liquid-Vapour Equilibria in the H 2 O-CO 2 -NaCl and H 2 O-H 2 S-NaCl Systems to 270°C -An unsymmetric thermodynamic model for the liquid-vapour equilibria in the H

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“…Therefore, knowing phase composition as a function of pressure is key information for "real-world" applications. Sampling methods are available; [5][6][7] however, direct sampling from high pressure systems may alter the equilibrium of the system and result in phase separation or flashing as a result of abrupt changes in pressure or temperature in the sample line. Therefore, a method that does not disturb the system and enables fast acquisition and reproducible data was preferable.…”

Section: Introductionmentioning

confidence: 99%

High-pressure Sapphire Cell for Phase Equilibria Measurements of CO<sub>2</sub>/Organic/Water Systems

Pollet

Ethier

Senter

et al. 2014

JoVE

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The high pressure sapphire cell apparatus was constructed to visually determine the composition of multiphase systems without physical sampling. Specifically, the sapphire cell enables visual data collection from multiple loadings to solve a set of material balances to precisely determine phase composition. Ternary phase diagrams can then be established to determine the proportion of each component in each phase at a given condition. In principle, any ternary system can be studied although ternary systems (gas-liquid-liquid) are the specific examples discussed herein. For instance, the ternary THF-Water-CO 2 system was studied at 25 and 40 °C and is described herein. Of key importance, this technique does not require sampling. Circumventing the possible disturbance of the system equilibrium upon sampling, inherent measurement errors, and technical difficulties of physically sampling under pressure is a significant benefit of this technique. Perhaps as important, the sapphire cell also enables the direct visual observation of the phase behavior. In fact, as the CO 2 pressure is increased, the homogeneous THFWater solution phase splits at about 2 MPa. With this technique, it was possible to easily and clearly observe the cloud point and determine the composition of the newly formed phases as a function of pressure.The data acquired with the sapphire cell technique can be used for many applications. In our case, we measured swelling and composition for tunable solvents, like gas-expanded liquids, gas-expanded ionic liquids and Organic Aqueous Tunable Systems (OATS) [1][2][3][4] . For the latest system, OATS, the high-pressure sapphire cell enabled the study of (1) phase behavior as a function of pressure and temperature, (2) composition of each phase (gas-liquid-liquid) as a function of pressure and temperature and (3) catalyst partitioning in the two liquid phases as a function of pressure and composition. Finally, the sapphire cell is an especially effective tool to gather accurate and reproducible measurements in a timely fashion. Video LinkThe video component of this article can be found at

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Ternary phase equilibria for acetic acid-water mixtures with supercritical carbon dioxide

Cited by 165 publications

References 8 publications

Measurement and modeling of the phase behavior of the (carbon dioxide+water) mixture at temperatures from 298.15K to 448.15K

Measurement and modeling of the phase behavior of the (carbon dioxide+water) mixture at temperatures from 298.15K to 448.15K

Modelling of Liquid-Vapour Equilibria in the H₂O-CO₂-Nacl and H₂O-H₂S-NaCl Systems to 270°C

High-pressure Sapphire Cell for Phase Equilibria Measurements of CO<sub>2</sub>/Organic/Water Systems

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Ternary phase equilibria for acetic acid-water mixtures with supercritical carbon dioxide

Cited by 165 publications

References 8 publications

Measurement and modeling of the phase behavior of the (carbon dioxide+water) mixture at temperatures from 298.15K to 448.15K

Measurement and modeling of the phase behavior of the (carbon dioxide+water) mixture at temperatures from 298.15K to 448.15K

Modelling of Liquid-Vapour Equilibria in the H2O-CO2-Nacl and H2O-H2S-NaCl Systems to 270°C

High-pressure Sapphire Cell for Phase Equilibria Measurements of CO<sub>2</sub>/Organic/Water Systems

Contact Info

Product

Resources

About

Modelling of Liquid-Vapour Equilibria in the H₂O-CO₂-Nacl and H₂O-H₂S-NaCl Systems to 270°C