(p,v,T,x) Measurements of {(1−x)H2O+xC2H5OH} mixtures in the near-critical and supercritical regions

Базаев, А. Р.; Abdulagatov, Ilmutdin M.; Bazaev, E. A.; Abdurashidova, A.

doi:10.1016/j.jct.2006.08.002

Cited by 48 publications

(19 citation statements)

References 86 publications

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“…The present experimental apparatus had negligible noxious volumes [58]. Taking into account the uncertainties of measurements of temperature and pressure, the combined expanded (k = 2) uncertainty of measuring the density was estimated to be 0.15%.…”

Section: Methodsmentioning

confidence: 93%

“…The apparatus used for P V T measurements of ethanol is similar to that used in previous papers [49][50][51][52][53][54][55][56][57][58][59] to measure P V T properties of pure methanol, n-alkanes, and their aqueous solutions in the critical and supercritical regions. Detailed descriptions of the apparatus and the experimental procedure, and uncertainty assessment have been described in our previous publications [49][50][51][52][53][54][55][56][57][58][59].…”

Section: Methodsmentioning

confidence: 99%

“…Detailed descriptions of the apparatus and the experimental procedure, and uncertainty assessment have been described in our previous publications [49][50][51][52][53][54][55][56][57][58][59]. The measurements were made using the constant-volume method, with an extraction of the sample from the piezometer under isothermal conditions.…”

Section: Methodsmentioning

confidence: 99%

“…This work is a part of a continuing program on volumetric (PVT) and caloric (C V V T ) property measurements of alcohols and their aqueous solutions in the critical and supercritical regions. The present PVT apparatus has been previously used for accurate measurements on other pure fluids and aqueous solutions in the critical and supercritical regions (Abdulagatov et al [49][50][51][52][53], Bazaev et al [54][55][56][57][58], and Rabezkii et al [59]). …”

Section: Critical Parametersmentioning

confidence: 99%

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PVT Measurements for Pure Ethanol in the Near-Critical and Supercritical Regions

et al. 2007

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The P V T properties of pure ethanol were measured in the near-critical and supercritical regions. Measurements were made using a constant-volume piezometer immersed in a precision thermostat. The uncertainty of the density measurements was estimated to be 0.15%. The uncertainties of the temperature and pressure measurements were, respectively, 15 mK and 0.05%. Measurements were made along various near-critical isotherms between 373 and 673 K and at densities from 91.81 to 497.67 kg · m −3 . The pressure range was from 0.226 to 40.292 MPa. Using two-phase P V T results, the values of the saturated-liquid and -vapor densities and the vapor pressure for temperatures between 373.15 and 513.15 K were obtained by means of an analytical extrapolation technique. The measured P V T data and saturated properties for pure ethanol were compared with values calculated from a fundamental equation of state and correlations, and with experimental data reported by other authors. The values of the critical parameters (T C ,P C ,ρ C ) were derived from the measured values of saturated densities and vapor pressure near the critical point. The derived values of the saturated densities near the critical point for ethanol were interpreted in term of the "complete scaling" theory.

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Section: Methodsmentioning

confidence: 93%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Critical Parametersmentioning

confidence: 99%

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PVT Measurements for Pure Ethanol in the Near-Critical and Supercritical Regions

et al. 2007

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“…Water The properties of hot, subcritical water, methanol, and ethanol along the saturation line are shown in Tables 2-4, respectively [1,[3][4][5][6][7][8][9][10][11][12][13]. These properties include the vapor pressures p, the molar enthalpies of vaporization ∆ V H, the density ρ, the isobaric expansibility α P , the isothermal compressibility κ T , the internal pressure P int = Tα P /κ T − p, the isobaric molar heat capacity C p , and the static permittivity ε.…”

Section: Propertymentioning

confidence: 99%

Extraction by Subcritical and Supercritical Water, Methanol, Ethanol and Their Mixtures

Marcus

2018

Separations

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Hot, subcritical and supercritical water, methanol, ethanol and their binary mixtures have been employed to treat fuels (desulfurize coal and recover liquid fuels from coal and oil shales) and to extract valuable solutes from biomass. The properties of these solvents that are relevant to their extraction abilities are presented. Various extraction methods: accelerated solvent extraction (ASE), pressurized liquid extraction (PLE), supercritical fluid extraction (SFE, but excluding supercritical carbon dioxide) with these solvents, including microwave-and ultrasound-assisted extraction, are dealt with. The extraction systems are extensively illustrated and discussed.

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SCW as a “Green” Solvent

2012

Supercritical Water

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(p,v,T,x) Measurements of {(1−x)H2O+xC2H5OH} mixtures in the near-critical and supercritical regions

Cited by 48 publications

References 86 publications

PVT Measurements for Pure Ethanol in the Near-Critical and Supercritical Regions

PVT Measurements for Pure Ethanol in the Near-Critical and Supercritical Regions

Extraction by Subcritical and Supercritical Water, Methanol, Ethanol and Their Mixtures

SCW as a “Green” Solvent

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