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Title: Vapor-liquid equilibrium of ethanol-water system in the presence of molecular sieves

Abstract

Adsorptive distillation is a new process to separate liquid mixtures in a packed distillation column. It depends on using active packing material instead of inert packing material in a packed distillation column. The active packing material can affect the intermolecular forces among the system components and thus alter its vapor-liquid equilibrium (VLE). The VLE of the ethanol-water system at 1 atm was studied using a circulation still in the absence and in the presence of different amounts of 4 {angstrom} molecular sieves. The results obtained showed that the VLE of the system was altered in the presence of the molecular sieves, the azeotropic point of the system (at 89.7 mol% ethanol in the normal case) was eliminated and considerable separation was achieved for a mixture of azeotropic composition, and the alteration in the VLE of a given binary mixture is a function of the pore size and the amount of the molecular sieves.

Authors:
; ;  [1]
  1. Jordan Univ. of Science and Technology, Irbid (Jordan). Dept. of Chemical Engineering
Publication Date:
OSTI Identifier:
691485
Resource Type:
Journal Article
Journal Name:
Separation Science and Technology
Additional Journal Information:
Journal Volume: 34; Journal Issue: 12; Other Information: PBD: Sep 1999
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; ETHANOL; ADSORPTION; DISTILLATION; COLUMN PACKING; ADSORBENTS; MOLECULAR SIEVES; EQUILIBRIUM; ENERGY EFFICIENCY

Citation Formats

Abu Al-Rub, F.A., Banat, F.A., and Jumah, R. Vapor-liquid equilibrium of ethanol-water system in the presence of molecular sieves. United States: N. p., 1999. Web. doi:10.1081/SS-100100777.
Abu Al-Rub, F.A., Banat, F.A., & Jumah, R. Vapor-liquid equilibrium of ethanol-water system in the presence of molecular sieves. United States. doi:10.1081/SS-100100777.
Abu Al-Rub, F.A., Banat, F.A., and Jumah, R. Wed . "Vapor-liquid equilibrium of ethanol-water system in the presence of molecular sieves". United States. doi:10.1081/SS-100100777.
@article{osti_691485,
title = {Vapor-liquid equilibrium of ethanol-water system in the presence of molecular sieves},
author = {Abu Al-Rub, F.A. and Banat, F.A. and Jumah, R.},
abstractNote = {Adsorptive distillation is a new process to separate liquid mixtures in a packed distillation column. It depends on using active packing material instead of inert packing material in a packed distillation column. The active packing material can affect the intermolecular forces among the system components and thus alter its vapor-liquid equilibrium (VLE). The VLE of the ethanol-water system at 1 atm was studied using a circulation still in the absence and in the presence of different amounts of 4 {angstrom} molecular sieves. The results obtained showed that the VLE of the system was altered in the presence of the molecular sieves, the azeotropic point of the system (at 89.7 mol% ethanol in the normal case) was eliminated and considerable separation was achieved for a mixture of azeotropic composition, and the alteration in the VLE of a given binary mixture is a function of the pore size and the amount of the molecular sieves.},
doi = {10.1081/SS-100100777},
journal = {Separation Science and Technology},
number = 12,
volume = 34,
place = {United States},
year = {1999},
month = {9}
}