Pervaporation separation of ethanol-water mixtures using polyethylenimine composite membranes

Neidlinger, Hermann H; Schissel, Paul O; Orth, Richard A

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Title: Pervaporation separation of ethanol-water mixtures using polyethylenimine composite membranes

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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:

Neidlinger, Hermann H ^[1]; Schissel, Paul O ^[2]; Orth, Richard A ^[3]

Lakewood, CO
Golden, CO
Denver, CO

Issue Date:: 1987-01-01

Research Org.:: Midwest Research Institute, Kansas City, MO (United States)

OSTI Identifier:: 866224

Patent Number(s):: 4659590

Assignee:: United States Department of Energy (Washington, DC)

Patent Classifications (CPCs):: B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION

C - CHEMISTRY C07 - ORGANIC CHEMISTRY C07C - ACYCLIC OR CARBOCYCLIC COMPOUNDS

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B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
B01D2323/30 - Cross-linking
B01D61/362 - {Pervaporation}
B01D69/125 - {In-situ manufacturing by polymerisation, polycondensation, cross-linking, and/or reaction}

C - CHEMISTRY C07 - ORGANIC CHEMISTRY C07C - ACYCLIC OR CARBOCYCLIC COMPOUNDS
C07C29/76 - by physical treatment
C07C31/08 - Ethanol

C - CHEMISTRY C12 - BIOCHEMISTRY C12P - FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE {
C12P7/06 - Ethanol, i.e. non-beverage

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
Y02E50/10 - Biofuels

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DOE Contract Number:: AC02-83CH10093

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: pervaporation; separation; ethanol-water; mixtures; polyethylenimine; composite; membranes; synthetic; organic; polymeric; prepared; apparatus; material; dilute; aqueous; solution; coated; polysulfone; support; film; excess; subsequently; removed; cross-links; generated; limited; exposure; toluene-2; 4-diisocyanate; membrane; heat-cured; resulting; structures; selectivity; permeating; ethanol; water; wide; range; feed; concentrations; subsequently removed; water mixture; composite membranes; composite membrane; polymeric material; aqueous solution; wide range; dilute aqueous; resulting membrane; subsequently remove; support film; polymeric membrane; ethanol-water mixtures; water mixtures; /427/210/

Citation Formats


                    Neidlinger, Hermann H, Schissel, Paul O, and Orth, Richard A. Pervaporation separation of ethanol-water mixtures using polyethylenimine composite membranes.  United States: N. p., 1987. 
        Web.

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                    Neidlinger, Hermann H, Schissel, Paul O, & Orth, Richard A. Pervaporation separation of ethanol-water mixtures using polyethylenimine composite membranes.  United States.

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                    Neidlinger, Hermann H, Schissel, Paul O, and Orth, Richard A. Thu .  
        "Pervaporation separation of ethanol-water mixtures using polyethylenimine composite membranes".  United States.  https://www.osti.gov/servlets/purl/866224.

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@article{osti_866224,

  title        = {Pervaporation separation of ethanol-water mixtures using polyethylenimine composite membranes},

  author       = {Neidlinger, Hermann H and Schissel, Paul O and Orth, Richard 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        = {1}

}

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Pervaporation separation of ethanol-water mixtures using polyethylenimine composite membranes

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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. 2 tabs.
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