Isobaric vapor–liquid equilibria for the n-heptane + ethylene glycol monopropyl ether and n-octane + ethylene glycol monopropyl ether systems

Jang, Sunghyun; Hyeong, Seonghoon; Shin, Moon Sam; Kim, Hwayong

doi:10.1016/j.fluid.2010.08.002

Cited by 14 publications

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“…mean radius of gyration (RD), dipole moments (DMU), and association and solvation parameters (ETA), used in this correlation are listed in Table . These constants were obtained from ref for 1-propanol and 1-butanol, and those for ethylene glycol monopropyl ether were determined in our previous work …”

Section: Resultsmentioning

confidence: 99%

“…The apparatus and procedures are exactly the same as described in a previous paper. , Thus, they are summarized below, and for any detailed description please refer to the original paper. , …”

Section: Methodsmentioning

confidence: 99%

“…In particular, ethoxylated alcohol, a nonionic surfactant, and its mixtures with hydrocarbons or alcohols exhibit strong association, due to the participation in both intermolecular and intramolecular associations resulting from the coexistence of ether (O) and hydroxyl (OH) groups in the same molecule. In order to quantify the phase behavior we have performed isothermal VLE and isobaric VLE , experiments of nonionic surfactants and hydrocarbon mixture systems. However, in contrast to the abundance of phase equilibrium data for water + surfactant − measured at atmospheric pressure, few data have been collected for nonionic surfactant + hydrocarbon , and alcohol systems.…”

Section: Introductionmentioning

confidence: 99%

“…Our previous studies have investigated the branch effect of a surfactant (C3E1 and i C3E1) mainly in mixtures with linear hydrocarbons, using isothermal VLE of n -hexane + C3E1 and n -heptane + C3E1, isobaric VLE of n -hexane + i C3E1 and n -heptane + i C3E1, and isobaric VLE of n -heptane + C3E1 and n -octane + C3E1 . In this study we measured VLE of both the ethoxylated alcohol and normal alcohol systems, which are 1-propanol + ethylene glycol monopropyl ether (C3E1) and 1-butanol + ethylene glycol monopropyl ether (C3E1), respectively, at several different pressures (60 kPa to 100 kPa).…”

Section: Introductionmentioning

confidence: 99%

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Isobaric Vapor–Liquid Equilibria for the 1-Propanol + Ethylene Glycol Monopropyl Ether and 1-Butanol + Ethylene Glycol Monopropyl Ether Systems

et al. 2011

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VaporÀliquid equilibria (VLE) for 1-propanol + ethylene glycol monopropyl ether and 1-butanol + ethylene glycol monopropyl ether systems were investigated. The systems studied are isobaric VLE of the highly associating fluid mixtures, and the measurements were carried out at several pressures (60 kPa, 80 kPa, and 100 kPa) using Fischer VLE 602 equipment. A consistency test with respect to the experimental data was conducted using Fredenslud and Wisniak methods. Correlations of the experimental data were carried out using a two-term virial equation for vapor-phase fugacity coefficients and the three suffix Margules, Wilson, NRTL, and UNIQUAC models for liquid-phase activity coefficients. The results show good agreements with the experimental data at the C3E1 rich region but not at the alcohol rich region due to the strong and complex association of these systems. Additionally there are no azeotrope points.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Isobaric Vapor–Liquid Equilibria for the 1-Propanol + Ethylene Glycol Monopropyl Ether and 1-Butanol + Ethylene Glycol Monopropyl Ether Systems

et al. 2011

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“…fr. [22], respectively. The initial state of the solution is at a temperature of T 0 ≈ 295 K, which is in the region of its stable states.…”

Section: Methodsmentioning

confidence: 97%

Investigation of Binary Liquids in Unstable States—An Experimental Approach

Igolnikov

Rutin

Скрипов

2021

Liquids

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In this article, we present a methodology for conducting measurements based on pulse heating of a wire probe in partially soluble binary liquids. These liquids, which can be rapidly transferred to the region of unstable states above the diffusional spinodal, are novel research objects for the thermophysics of extreme states. Using the example of aqueous solutions of polypropylene glycol and glycol monobutyl ether having a lower critical solution temperature, the key hypothesis of the study on the general measurability of the properties of unstable solutions has been confirmed. The characteristic heating times from 1 to 15 milliseconds corresponded to the thickness of the heated layer comprising a few micrometers. The pressure was varied from units of MPa to 100 MPa. The conditions for the transition from measurements on pure components to those on solutions are formulated. The characteristic thermal patterns of the decay of unstable states depending on pressure and heating rate are revealed. The general possibility of using partially soluble binary liquids as a promising coolant in processes involving powerful local heat release is demonstrated.

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Vapor-liquid equilibra for cyclohexane+2-propoxyethanol and cyclohexane+2-butoxyethanol systems

Kim

Choi

Kim

et al. 2012

Korean J. Chem. Eng.

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Isobaric vapor–liquid equilibria for the n-heptane + ethylene glycol monopropyl ether and n-octane + ethylene glycol monopropyl ether systems

Cited by 14 publications

References 14 publications

Isobaric Vapor–Liquid Equilibria for the 1-Propanol + Ethylene Glycol Monopropyl Ether and 1-Butanol + Ethylene Glycol Monopropyl Ether Systems

Isobaric Vapor–Liquid Equilibria for the 1-Propanol + Ethylene Glycol Monopropyl Ether and 1-Butanol + Ethylene Glycol Monopropyl Ether Systems

Investigation of Binary Liquids in Unstable States—An Experimental Approach

Vapor-liquid equilibra for cyclohexane+2-propoxyethanol and cyclohexane+2-butoxyethanol systems

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