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Title: 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 A
Application Number:
PPN: US 6-746592
Assignee:
Dept. of Energy, Washington, DC (United States) PTO; EDB-94-122018
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}
}