Pervaporation of water/ethanol mixtures by an aromatic polyetherimide membrane
- Univ. of Waterloo, Ontario (Canada)
The pervaporation of water/ethanol mixtures through an aromatic polyetherimide membrane was attempted. The membrane was laboratory prepared using the solution casting technique. The sorption characteristics in relation to pervaporation were also studied. It was found that the preferential sorption was altered when the liquid composition was changed, whereas the water component permeated through the membrane preferentially over the whole range of feed mixture compositions. The experimental results were analyzed in terms of sorption ratio and permeation ratio to characterize nonideality of sorption and pervaporation. The effects of some operating parameters, including temperature, feed concentration, and permeate pressure, on the pervaporation performance were also investigated.
- OSTI ID:
- 7023364
- Journal Information:
- Separation Science and Technology; (United States), Journal Name: Separation Science and Technology; (United States) Vol. 27:12; 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
ALCOHOLS
AQUEOUS SOLUTIONS
CHEMICAL COMPOSITION
DATA
DIAGRAMS
DISPERSIONS
ETHANOL
EXPERIMENTAL DATA
FABRICATION
FLOWSHEETS
HYDROXY COMPOUNDS
IMIDES
INFORMATION
MEMBRANE TRANSPORT
MEMBRANES
MIXTURES
NUMERICAL DATA
OPERATION
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PERFORMANCE
PERMEABILITY
POLYMERS
PRESSURE DEPENDENCE
QUANTITY RATIO
SOLUTIONS
SORPTION
SORPTIVE PROPERTIES
SURFACE PROPERTIES
TEMPERATURE DEPENDENCE