Pervaporation separation of ethanol-water mixtures using polyethylenimine composite membranes
Abstract
Synthetic, organic, polymeric membranes were prepared from polyethylenimine for use with pervaporation apparatus in the separation of ethanol-water mixtures. The polymeric material was prepared in dilute aqueous solution and coated onto a polysulfone support film, from which excess polymeric material was subsequently removed. Cross-links were then generated by limited exposure to toluene-2,4-diisocyanate solution, after which the prepared membrane was heat-cured. The resulting membrane structures showed high selectivity in permeating ethanol or water over a wide range of feed concentrations.
- Inventors:
- Issue Date:
- OSTI Identifier:
- 7012203
- Patent Number(s):
- 4659590
- Application Number:
- PPN: US 6-746592
- Assignee:
- Dept. of Energy, Washington, DC (United States)
- DOE Contract Number:
- AC02-83CH10093
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 19 Jun 1985
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 10 SYNTHETIC FUELS; 09 BIOMASS FUELS; ETHANOL; MEMBRANE TRANSPORT; MEMBRANES; FABRICATION; POLYETHYLENES; SEPARATION PROCESSES; SUPPORTS; ALCOHOLS; HYDROXY COMPOUNDS; MECHANICAL STRUCTURES; ORGANIC COMPOUNDS; ORGANIC POLYMERS; POLYMERS; POLYOLEFINS; 100200* - Synthetic Fuels- Production- (1990-); 090900 - Biomass Fuels- Processing- (1990-)
Citation Formats
Neidlinger, H H, Schissel, P O, and Orth, R A. Pervaporation separation of ethanol-water mixtures using polyethylenimine composite membranes. United States: N. p., 1987.
Web.
Neidlinger, H H, Schissel, P O, & Orth, R A. Pervaporation separation of ethanol-water mixtures using polyethylenimine composite membranes. United States.
Neidlinger, H H, Schissel, P O, and Orth, R A. Tue .
"Pervaporation separation of ethanol-water mixtures using polyethylenimine composite membranes". United States.
@article{osti_7012203,
title = {Pervaporation separation of ethanol-water mixtures using polyethylenimine composite membranes},
author = {Neidlinger, H H and Schissel, P O and Orth, R A},
abstractNote = {Synthetic, organic, polymeric membranes were prepared from polyethylenimine for use with pervaporation apparatus in the separation of ethanol-water mixtures. The polymeric material was prepared in dilute aqueous solution and coated onto a polysulfone support film, from which excess polymeric material was subsequently removed. Cross-links were then generated by limited exposure to toluene-2,4-diisocyanate solution, after which the prepared membrane was heat-cured. The resulting membrane structures showed high selectivity in permeating ethanol or water over a wide range of feed concentrations.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1987},
month = {4}
}
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