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

Journal Article · Wed Sep 01 04:00:00 EDT 1999 · Separation Science and Technology

DOI:https://doi.org/10.1081/SS-100100777· OSTI ID:691485

Abu Al-Rub, F A; Banat, F A; Jumah, R ^[1]

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1. Jordan Univ. of Science and Technology, Irbid (Jordan). Dept. of Chemical Engineering

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.

• OSTI ID: 691485
• Journal Information: Separation Science and Technology, Journal Name: Separation Science and Technology Journal Issue: 12 Vol. 34; ISSN 0149-6395; ISSN SSTEDS
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
ADSORBENTS
ADSORPTION
COLUMN PACKING
DISTILLATION
ENERGY EFFICIENCY
EQUILIBRIUM
ETHANOL
MOLECULAR SIEVES