Vapor‐liquid equilibrium of the binary mixtures CnH2n + 1(OH) (n = 2,3,4) + Propyl Ethanoate and + Ethyl Propanoate

Ortega, Juan; Ocon, Joey D.; Peña, J.Á.; Alfonso, Casiano De; Paz-Andrade, Maria I.; Fernández, Josefa

doi:10.1002/cjce.5450650614

Cited by 24 publications

(17 citation statements)

References 9 publications

(8 reference statements)

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“…The molar volumes v i o in saturation conditions were estimated using a modified version of Rackett's equation, using the values of Z RA given by Spencer and Danner. 37 The second virial coefficients for the pure B ii compounds and for the mixtures B 12 were estimated with the expressions proposed by Tsonopoulos,38 which are used to calculate the parameter δ 12 = 2B 12 − B 11 − B 22 . The values calculated with eq 7 are presented in Table 8, together with the corresponding to the adimensional Gibbs function g E /RT = ∑x i lnγ i and are represented graphically in Figures 4b to 9b for the six systems studied.…”

Section: Journal Of Chemical and Engineering Datamentioning

confidence: 99%

Multiproperty Correlation of Experimental Data of the Binaries Propyl Ethanoate + Alkanes (Pentane to Decane). New Experimental Information for Vapor–Liquid Equilibrium and Mixing Properties

et al. 2013

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A thermodynamic study is carried out on binary systems composed of propyl ethanoate with six alkanes, from pentane to decane. Vapor pressures of the ester and the isobaric vapor−liquid equilibria of these six mixtures were measured at 101.32 kPa in a small-capacity ebulliometer and also the mixing properties,h E over a range of temperatures and at atmospheric pressure. Adequate correlations are drawn for the surfaces y E = y E (x,T) with an interpretation on the behavior of the mixtures and also using c p E data from literature. The mixing processes are all endothermic with a change in the slope direction of the function h E = h

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Section: Journal Of Chemical and Engineering Datamentioning

confidence: 99%

Multiproperty Correlation of Experimental Data of the Binaries Propyl Ethanoate + Alkanes (Pentane to Decane). New Experimental Information for Vapor–Liquid Equilibrium and Mixing Properties

et al. 2013

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“…In literature [4,5] the PA1B system is described at 101.32 kPa and 160 kPa, while the PA2B system has been studied [6] at 101.31 kPa. Furthermore, the bibliographic data [6] describes the existence of an azeotropic point in PA2B mixture; however, for the PA1B system the singular point has not been described.…”

Section: Introductionmentioning

confidence: 99%

Isobaric (vapor+liquid) equilibrium for n-propyl acetate with 1-butanol or 2-butanol. Binary mixtures at 0.15 and 0.6MPa

Badajoz

Rodríguez-Henríquez

Castillo

et al. 2015

Fluid Phase Equilibria

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“…This work contributes to the subject and proposes a new procedure to study the thermodynamic consistency of VLE and VLLE data. The method takes into account the experiences described by other researchers, and expands upon an idea that initially appeared in a previous study three decades ago, which was not developed at the time. Owing to the length of the proposed method, we give now an outline of it: The first part shows the equations used in the proposed test, arising from Eq.…”

Section: Introductionmentioning

confidence: 99%

A rigorous method to evaluate the consistency of experimental data in phase equilibria. Application to VLE and VLLE

2017

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This work forms part of a broader study that describes a methodology to validate experimental data of phase equilibria for multicomponent systems from a thermodynamic‐mathematical perspective. The goal of this article is to present and justify this method and to study its application to vapor–liquid equilibria (VLE) and vapor–liquid–liquid equilibria (VLLE), obtained under isobaric/isothermal conditions. A procedure based on the Gibbs‐Duhem equation is established which presents two independent calculation paths for its resolution: (a) an integral method and (b) a differential method. Functions are generated for both cases that establish the verification or consistency of data, δψ for the integral test and δζ for the differential approach, which are statistically evaluated by their corresponding average values [ δtrueψ¯, δtrueζ¯], and the standard deviations [ strue(δψtrue), strue(δζtrue)]. The evaluation of these parameters for application to real cases is carried out using a set of hypothetical systems (with data generated artificially), for which the values are adequately changed to determine their influence on the method. In this way, the requirements of the proposed method for the data are evaluated and their behavior in response to any disruption in the canonical variables (p,T, phase compositions). The conditions for thermodynamic consistency of data are: δtrueψ¯<2, strue(δψtrue)<0.2, δtrueζ¯<5, and s(δξ)<0.2. In systems with VLLE, in addition to the previous criteria, must occur that: δxLLE<0.05 and δTLLE<0.5 K. The new proposed method has been tested with a set of 300 experimental binary systems, biphasic and triphasic, obtained from published bibliography, and the results are compared with those of other tests commonly used for testing thermodynamic consistency. The results show that the greater rigor of the proposed method is mainly due to the simultaneous verification of various independent variables. As a result, the conditions for the new test are verified for fewer systems than using other tests mentioned in the literature (i.e., Fredenslund‐test and direct of Van Ness). Its unique application is sufficient to ensure the consistency of experimental data, without using other tests. © 2017 American Institute of Chemical Engineers AIChE J, 2017

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Vapor‐liquid equilibrium of the binary mixtures C_nH_{2n + 1}(OH) (n = 2,3,4) + Propyl Ethanoate and + Ethyl Propanoate

Cited by 24 publications

References 9 publications

Multiproperty Correlation of Experimental Data of the Binaries Propyl Ethanoate + Alkanes (Pentane to Decane). New Experimental Information for Vapor–Liquid Equilibrium and Mixing Properties

Multiproperty Correlation of Experimental Data of the Binaries Propyl Ethanoate + Alkanes (Pentane to Decane). New Experimental Information for Vapor–Liquid Equilibrium and Mixing Properties

Isobaric (vapor+liquid) equilibrium for n-propyl acetate with 1-butanol or 2-butanol. Binary mixtures at 0.15 and 0.6MPa

A rigorous method to evaluate the consistency of experimental data in phase equilibria. Application to VLE and VLLE

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