Premium
Experimental Study of the Salt Effect in Vapor/Liquid Equilibria Using Headspace Gas Chromatography
Author(s) -
Banat Fawzi A.,
Abu AlRub Fahmi A.,
Simandl Jana
Publication year - 1999
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/(sici)1521-4125(199909)22:9<761::aid-ceat761>3.0.co;2-u
Subject(s) - chemistry , salt (chemistry) , salting out , gas chromatography , chromatography , work (physics) , salting , ethanol , thermodynamics , organic chemistry , aqueous solution , physics , food science
The salt effect on vapor/liquid equilibrium for an ethanol/water system was studied at 70 °C using the Headspace Gas Chromatography technique. The azeotropic point of the system was eliminated in the presence of the salts studied. All the salts investigated in this work exhibited a salting out effect which followed the order of NH 4 Cl > NaCl > CaCl 2 and which increased with increasing salt concentration. Good agreement with Furter's equation was observed for the experimental data with unsaturated NaCl salt. The salt effect parameter, determined from Furter's equation, was found to be a function of the liquid concentration.