Pervaporation of ethanol and acetone above normal boiling temperatures

Journal Article · Sat Aug 01 04:00:00 EDT 1992 · Separation Science and Technology; (United States)

DOI:https://doi.org/10.1080/01496399208019419· OSTI ID:7265940

Windmoeller, D; Galembeck, F ^[1]

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1. Univ. Estadual de Campinas, Sao Paulo (Brazil)

Pervaporation experiments were performed at higher than normal feed liquid boiling temperatures by applying pressure to the feed compartment. Ethanol, acetone, and aqueous ethanol solutions were pervaporated through silicone rubber dense membranes. Large increases were observed in the permeate flow as the temperature rose above the liquid boiling temperature. Separation factors in aqueous ethanol pervaporation are not affected by these increases in permeate output, and they are in the same range as those obtained in conventional pervaporation.

• OSTI ID: 7265940
• Journal Information: Separation Science and Technology; (United States), Journal Name: Separation Science and Technology; (United States) Vol. 27:10; ISSN SSTED; ISSN 0149-6395
• Country of Publication: United States
• Language: English

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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400105* -- Separation Procedures
ACETONE
ALCOHOLS
BOILING POINTS
DATA
DEHYDRATION
DIAGRAMS
ELECTRON MICROSCOPY
ETHANOL
ETHANOL PLANTS
EXPERIMENTAL DATA
HYDROXY COMPOUNDS
INDUSTRIAL PLANTS
INFORMATION
KETONES
KINETICS
MEMBRANE TRANSPORT
MEMBRANES
MICROSCOPY
MORPHOLOGY
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC SILICON COMPOUNDS
PHASE DIAGRAMS
PHYSICAL PROPERTIES
POLYMERS
PRESSURE DEPENDENCE
PRESSURIZATION
SCANNING ELECTRON MICROSCOPY
SILICONES
SILOXANES
TEMPERATURE DEPENDENCE
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE