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Title: Vapor-liquid equilibria of n-hexane + cyclohexane + n-heptane and the three constituent binary systems at 101. 0 kPa

Abstract

Vapor-liquid equilibrium data for the title ternary system and the three constituent binary systems have been measured at 101.0 kPa by using a dynamic equilibrium still. The binary data were tested for thermodynamic consistency and were correlated by the Wilson, NRTL, and UNIQUAC equations. Predictions for the ternary system by these equations have been compared with the experimental data.

Authors:
; ;  [1]
  1. (National Cheng Kung Univ., Tainan (Taiwan, Province of China). Dept. of Chemical Engineering)
Publication Date:
OSTI Identifier:
7228908
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Chemical and Engineering Data; (United States); Journal Volume: 39:3
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; CYCLOHEXANE; THERMODYNAMIC PROPERTIES; HEPTANE; HEXANE; DESIGN; DISTILLATION EQUIPMENT; EQUATIONS OF STATE; EQUILIBRIUM; LIQUIDS; MIXTURES; VAPORS; ALKANES; CYCLOALKANES; DISPERSIONS; EQUATIONS; EQUIPMENT; FLUIDS; GASES; HYDROCARBONS; ORGANIC COMPOUNDS; PHYSICAL PROPERTIES; 400201* - Chemical & Physicochemical Properties

Citation Formats

Jan, D.S., Shiau, H.Y., and Tsai, F.N.. Vapor-liquid equilibria of n-hexane + cyclohexane + n-heptane and the three constituent binary systems at 101. 0 kPa. United States: N. p., 1994. Web. doi:10.1021/je00015a007.
Jan, D.S., Shiau, H.Y., & Tsai, F.N.. Vapor-liquid equilibria of n-hexane + cyclohexane + n-heptane and the three constituent binary systems at 101. 0 kPa. United States. doi:10.1021/je00015a007.
Jan, D.S., Shiau, H.Y., and Tsai, F.N.. Fri . "Vapor-liquid equilibria of n-hexane + cyclohexane + n-heptane and the three constituent binary systems at 101. 0 kPa". United States. doi:10.1021/je00015a007.
@article{osti_7228908,
title = {Vapor-liquid equilibria of n-hexane + cyclohexane + n-heptane and the three constituent binary systems at 101. 0 kPa},
author = {Jan, D.S. and Shiau, H.Y. and Tsai, F.N.},
abstractNote = {Vapor-liquid equilibrium data for the title ternary system and the three constituent binary systems have been measured at 101.0 kPa by using a dynamic equilibrium still. The binary data were tested for thermodynamic consistency and were correlated by the Wilson, NRTL, and UNIQUAC equations. Predictions for the ternary system by these equations have been compared with the experimental data.},
doi = {10.1021/je00015a007},
journal = {Journal of Chemical and Engineering Data; (United States)},
number = ,
volume = 39:3,
place = {United States},
year = {Fri Jul 01 00:00:00 EDT 1994},
month = {Fri Jul 01 00:00:00 EDT 1994}
}
  • Vapor-liquid equilibria (VLE) and azeotropic data, which are useful for the design and operation of separation processes, have been observed for many systems. Isobaric vapor-liquid equilibria for acetone + chloroform + methanol and for the constituent binary systems chloroform + methanol and chloroform + acetone were measured at 101.3 kPa using a liquid-vapor ebullition-type equilibrium still. The experimental data were correlated with the extended Redlich-Kister and Wilson equations. The data were best correlated and completely calculated for the ternary and three binary azeotropic data using the extended Redlich-Kister equation.
  • The three-phase L/sub 1/-L/sub 2/-V equilibria behaviour of the ternary systems methane + ethane + n-hexane and methane + ethane + n-heptane is studied. Also presented are the results for the binary system methane + n-heptane. The compositions and molar volumes of the liquid phases are reported as functions of temperature and pressure within the immiscibility regions. The two ternary systems have constituent binaries that exhibit L/sub 1/-L/sub 2/-V immiscibility (methane + n-hexane and methane + n-heptane, respectively). The addition of the third component, ethane, promotes three-phase behaviour in a region extending upward in temperature.
  • Isothermal vapor-liquid equilibria were measured for the ternary system of benzene + cyclohexane + 1-propanol and its constituent binary systems of benzene + cyclohexane, cyclohexane + 1-propanol, and benzene + 1-propanol at 323.15 and 333.15 K, using the apparatus proposed in a previous study. The experimental binary data were correlated using the NRTL equation. The ternary system was predicted using the binary NRTL parameters. The average absolute percent deviations between the predicted and experimental ternary total pressures are 0.5% at 323.15 K and 0.4% at 333.15 K.
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