Isothermal vapour-liquid equilibria of 1-propanol-water-salt mixtures

Fahmi A. Abu Al-Rub; Fawzi A. Banat; J. Simandl

doi:10.1016/S1385-8947(99)00015-7

Isothermal vapour-liquid equilibria of 1-propanol-water-salt mixtures

Fahmi A. Abu Al-Rub, Fawzi A. Banat, J. Simandl

Chemical and Petroleum Engineering

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

Isothermal vapour-liquid equilibrium data at 60°C for the system 1-propanol-water-salt were obtained using the headspace gas chromatography (HSGC) technique. Three different salts were investigated in this study; NH₄Cl, NaCl and CaCl₂. The results obtained showed that while 0.50 M NH₄Cl or 0.50 M CaCl₂ had no effect on the vapour-liquid-equilibrium (VLE) of this system, NaCl with the same molarity could alter the VLE of the system and shift its azeotropic point. The azeotropic point of the system was shifted from 40 mol% 1-propanol to about 60 mol% 1-propanol when NaCl was added under saturation conditions. Good agreement with the Furter equation was observed for the experimental data with NaCl under unsaturated conditions. The salt effect parameter calculated from the Furter equation was found to be a function of the liquid concentration.

Original language	British English
Pages (from-to)	205-210
Number of pages	6
Journal	Chemical Engineering Journal
Volume	74
Issue number	3
DOIs	https://doi.org/10.1016/S1385-8947(99)00015-7
State	Published - 19 Jul 1999

Keywords

Furter equation
Vapour-liquid equilibrium

Access to Document

10.1016/S1385-8947(99)00015-7

Cite this

@article{10abf650730f4d34bf86f9134f86400a,

title = "Isothermal vapour-liquid equilibria of 1-propanol-water-salt mixtures",

abstract = "Isothermal vapour-liquid equilibrium data at 60°C for the system 1-propanol-water-salt were obtained using the headspace gas chromatography (HSGC) technique. Three different salts were investigated in this study; NH4Cl, NaCl and CaCl2. The results obtained showed that while 0.50 M NH4Cl or 0.50 M CaCl2 had no effect on the vapour-liquid-equilibrium (VLE) of this system, NaCl with the same molarity could alter the VLE of the system and shift its azeotropic point. The azeotropic point of the system was shifted from 40 mol% 1-propanol to about 60 mol% 1-propanol when NaCl was added under saturation conditions. Good agreement with the Furter equation was observed for the experimental data with NaCl under unsaturated conditions. The salt effect parameter calculated from the Furter equation was found to be a function of the liquid concentration.",

keywords = "Furter equation, Vapour-liquid equilibrium",

author = "{Abu Al-Rub}, {Fahmi A.} and Banat, {Fawzi A.} and J. Simandl",

year = "1999",

month = jul,

day = "19",

doi = "10.1016/S1385-8947(99)00015-7",

language = "British English",

volume = "74",

pages = "205--210",

journal = "Chemical Engineering Journal",

issn = "1385-8947",

publisher = "Elsevier B.V.",

number = "3",

}

TY - JOUR

T1 - Isothermal vapour-liquid equilibria of 1-propanol-water-salt mixtures

AU - Abu Al-Rub, Fahmi A.

AU - Banat, Fawzi A.

AU - Simandl, J.

PY - 1999/7/19

Y1 - 1999/7/19

N2 - Isothermal vapour-liquid equilibrium data at 60°C for the system 1-propanol-water-salt were obtained using the headspace gas chromatography (HSGC) technique. Three different salts were investigated in this study; NH4Cl, NaCl and CaCl2. The results obtained showed that while 0.50 M NH4Cl or 0.50 M CaCl2 had no effect on the vapour-liquid-equilibrium (VLE) of this system, NaCl with the same molarity could alter the VLE of the system and shift its azeotropic point. The azeotropic point of the system was shifted from 40 mol% 1-propanol to about 60 mol% 1-propanol when NaCl was added under saturation conditions. Good agreement with the Furter equation was observed for the experimental data with NaCl under unsaturated conditions. The salt effect parameter calculated from the Furter equation was found to be a function of the liquid concentration.

AB - Isothermal vapour-liquid equilibrium data at 60°C for the system 1-propanol-water-salt were obtained using the headspace gas chromatography (HSGC) technique. Three different salts were investigated in this study; NH4Cl, NaCl and CaCl2. The results obtained showed that while 0.50 M NH4Cl or 0.50 M CaCl2 had no effect on the vapour-liquid-equilibrium (VLE) of this system, NaCl with the same molarity could alter the VLE of the system and shift its azeotropic point. The azeotropic point of the system was shifted from 40 mol% 1-propanol to about 60 mol% 1-propanol when NaCl was added under saturation conditions. Good agreement with the Furter equation was observed for the experimental data with NaCl under unsaturated conditions. The salt effect parameter calculated from the Furter equation was found to be a function of the liquid concentration.

KW - Furter equation

KW - Vapour-liquid equilibrium

UR - http://www.scopus.com/inward/record.url?scp=0032823920&partnerID=8YFLogxK

U2 - 10.1016/S1385-8947(99)00015-7

DO - 10.1016/S1385-8947(99)00015-7

M3 - Article

AN - SCOPUS:0032823920

SN - 1385-8947

VL - 74

SP - 205

EP - 210

JO - Chemical Engineering Journal

JF - Chemical Engineering Journal

IS - 3

ER -

Isothermal vapour-liquid equilibria of 1-propanol-water-salt mixtures

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this