Vapor-liquid equilibrium data for the systems ethylene + ethane and carbon dioxide + ethylene + ethane

Vitaii, G.; Berchiesi, M. A.; Berchiesi, G. J. Chem. Eng. Data 1979, 24, 169. Castellani, F.; Berchiesi, 0.; Pucckrelll, F.; Bartocci, V. J. Chem. Eng. A new apparatus has been developed for maklng vapor pressure measurements on hlgh-pressure systems. Uslng thls equlpment, we have made a large number of new total pressure measurements on the ethane-ethylene blnary from 198.15 to 278.15 K. By Integration of the general coexlstence equatlon, relatlve volatllltles have been calculated for ethane-ethylene over the entlre temperature range.

Section: Resultsmentioning

confidence: 99%

Section: Acknowledgmentmentioning

confidence: 99%

See 1 more Smart Citation

Relative volatilities of the ethane-ethylene system from total pressure measurements

Barclay¹,

Flebbe²,

Manley³

1982

“…The Fredenslund test considers global consistency but ignores local consistency. Therefore, it is necessary to make a residual distribution analysis, which is defined by eqs and . The calculated error distributions are presented in Figures S7–S9.…”

Section: Resultsmentioning

confidence: 99%

Vapor–Liquid Equilibrium for the Binary Systems Involving Cumene, t-Butylbenzene, and sec-Butylbenzene at 101.3 kPa

Xing,

Wu,

et al. 2024

The vapor−liquid equilibrium data of the three binary systems, including the components of cumene, t-butylbenzene, and sec-butylbenzene, were determined at 101.3 kPa in this paper. The systems did not exhibit azeotropic behavior under the experimental conditions. The Fredenslund test, the Redlich−Kister area test, and Wisniak's L-W test checked the thermodynamic consistency of the vapor−liquid equilibrium data. The experimental data were correlated by nonrandom two-liquid, Wilson, and universal quasi-chemical activity coefficient models, and their respective binary interaction parameters were obtained correspondingly. The maximum absolute deviation, root-mean-square deviation, and average absolute deviation between experimental data and computed values by thermodynamic models were calculated as well. It showed that all three models could fit the experimental data well. This study can help in designing the distillation process in industrial applications.

“…The VLE experimental data were studied for binary system (2-PE + 2-EP) at 10.5, 20.0, and 50.0 kPa in our work. The Redlich–Kister area test and the Fredenslund test were used to confirm the thermodynamic consistency of the experimental data. − In addition to this, we used nonrandom two-liquid (NRTL), Wilson, and Universal Quasi-Chemical (UNIQUAC) activity coefficient models to associate binary VLE data. The corresponding binary interaction parameters of 2-PE and 2-EP were obtained, respectively. − …”

Section: Introductionmentioning

confidence: 99%

Vapor–Liquid Equilibrium for the Binary System of 2-Phenylethanol + 2-Ethylphenol at 50.0, 20.0, and 10.5 kPa

Zhao

et al. 2022

The vapor−liquid equilibrium (VLE) data for binary systems 2-PE and 2-EP were measured at 50.0, 20.0, and 10.5 kPa using a modified Rose equilibrium still. The Redlich−Kister area test and Fredenslund point test were applied to test the thermodynamic consistency of the VLE data, respectively. In addition, experimental data were successfully matched using nonrandom two-liquid (NRTL), Wilson, and Universal Quasi-Chemical (UNIQUAC) activity coefficient models. Binary interaction parameters (BIPs) corresponding to three models were obtained by maximum likelihood target function regression. This paper would help the distillation design of 2-phenylethanol and 2ethylphenol in industrial applications.