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Title: Pervaporation of ethanol and acetone above normal boiling temperatures

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.
Authors:
;  [1]
  1. (Univ. Estadual de Campinas, Sao Paulo (Brazil))
Publication Date:
OSTI Identifier:
7265940
Resource Type:
Journal Article
Resource Relation:
Journal Name: Separation Science and Technology; (United States); Journal Volume: 27:10
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 10 SYNTHETIC FUELS; 09 BIOMASS FUELS; ACETONE; MEMBRANE TRANSPORT; ETHANOL; BOILING POINTS; DEHYDRATION; ETHANOL PLANTS; EXPERIMENTAL DATA; KINETICS; MEMBRANES; MORPHOLOGY; PHASE DIAGRAMS; PRESSURE DEPENDENCE; PRESSURIZATION; SCANNING ELECTRON MICROSCOPY; SILICONES; TEMPERATURE DEPENDENCE; ALCOHOLS; DATA; DIAGRAMS; ELECTRON MICROSCOPY; HYDROXY COMPOUNDS; INDUSTRIAL PLANTS; INFORMATION; KETONES; MICROSCOPY; NUMERICAL DATA; ORGANIC COMPOUNDS; ORGANIC SILICON COMPOUNDS; PHYSICAL PROPERTIES; POLYMERS; SILOXANES; THERMODYNAMIC PROPERTIES; TRANSITION TEMPERATURE 400105* -- Separation Procedures; 100200 -- Synthetic Fuels-- Production-- (1990-); 090900 -- Biomass Fuels-- Processing-- (1990-)