Methods and systems for treating liquids using switchable solvents

Title: Methods and systems for treating liquids using switchable solvents

Abstract

A method of treating a liquid. The method comprises providing a feed liquid comprising at least one solvent and at least one solute to a first side of a membrane. A single-phase draw solution comprising at least one of an aminium salt, an amidinium salt, and a guanidinium salt is provided to a second side of the membrane. The at least one solvent is osmosed across the membrane and into the single-phase draw solution to form a diluted single-phase draw solution. At least one of CO2, CS2, and COS is removed from the diluted single-phase draw solution to form a first multiple-phase solution comprising a first liquid phase comprising the at least one solvent, and a second liquid phase comprising at least one of an amine compound, an amidine compound, and a guanidine compound. A liquid purification system is also described.

Inventors:: Wilson, Aaron D.; Stewart, Frederick F.; Stone, Mark L.

Issue Date:: 2019-07-30

Research Org.:: Idaho National Lab. (INL), Idaho Falls, ID (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1568641

Patent Number(s):: 10363336

Application Number:: 13/480,053

Assignee:: Battelle Energy Alliance, LLC (Idaho Falls, ID)

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

C - CHEMISTRY C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE C02F - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

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B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
B01D2311/2653 - Degassing
B01D2311/2661 - Addition of gas

C - CHEMISTRY C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE C02F - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
C02F2103/06 - Contaminated groundwater or leachate
C02F2103/08 - Seawater, e.g. for desalination
C02F1/441 - {by reverse osmosis}

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
B01D61/58 - Multistep processes {

A - HUMAN NECESSITIES A61 - MEDICAL OR VETERINARY SCIENCE A61L - METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL
A61L9/16 - using physical phenomena

C - CHEMISTRY C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE C02F - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
C02F1/445 - {by forward osmosis}

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
B01D61/002 - {Forward osmosis, direct osmosis
B01D2311/103 - Heating
B01D2311/2642 - Aggregation, sedimentation, flocculation, precipitation or coagulation
B01D2311/06 - Specific process operations in the permeate stream
B01D61/005 - {Osmotic agents, draw solutions}
B01D2311/25 - Recirculation, recycling, e.g. recirculation of concentrate into the feed

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DOE Contract Number:: AC07-05ID14517

Resource Type:: Patent

Resource Relation:: Patent File Date: 05/24/2012

Country of Publication:: United States

Language:: English

Subject:: 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 54 ENVIRONMENTAL SCIENCES

Citation Formats


                    Wilson, Aaron D., Stewart, Frederick F., and Stone, Mark L. Methods and systems for treating liquids using switchable solvents.  United States: N. p., 2019. 
        Web.

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                    Wilson, Aaron D., Stewart, Frederick F., & Stone, Mark L. Methods and systems for treating liquids using switchable solvents.  United States.

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                    Wilson, Aaron D., Stewart, Frederick F., and Stone, Mark L. Tue .  
        "Methods and systems for treating liquids using switchable solvents".  United States.  https://www.osti.gov/servlets/purl/1568641.

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@article{osti_1568641,

  title        = {Methods and systems for treating liquids using switchable solvents},

  author       = {Wilson, Aaron D. and Stewart, Frederick F. and Stone, Mark L.},

  abstractNote = {A method of treating a liquid. The method comprises providing a feed liquid comprising at least one solvent and at least one solute to a first side of a membrane. A single-phase draw solution comprising at least one of an aminium salt, an amidinium salt, and a guanidinium salt is provided to a second side of the membrane. The at least one solvent is osmosed across the membrane and into the single-phase draw solution to form a diluted single-phase draw solution. At least one of CO2, CS2, and COS is removed from the diluted single-phase draw solution to form a first multiple-phase solution comprising a first liquid phase comprising the at least one solvent, and a second liquid phase comprising at least one of an amine compound, an amidine compound, and a guanidine compound. A liquid purification system is also described.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2019},

  month        = {7}

}

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Works referenced in this record:

Switchable solvents and methods of use thereof
patent, July 2011

Jessop, Philip G.; Eckert, Charles A.; Liotta, Charles L.
US Patent Document 7,982,069
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=7982069

Selective aqueous extraction of organics coupled with trapping by membrane separation
patent, August 1991

van Eikeren, Paul; Brose, Daniel J.; Ray, Roderick J.
US Patent Document 5,041,227
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=5041227

Osmotic desalination process
patent, July 2009

McGinnis, Jr., Robert L.
US Patent Document 7,560,029
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=7560029

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Title: Methods and systems for treating liquids using switchable solvents

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Citation Formats

Switchable solvents and methods of use thereof patent, July 2011

Selective aqueous extraction of organics coupled with trapping by membrane separation patent, August 1991

Osmotic desalination process patent, July 2009

Switchable solvents and methods of use thereof
patent, July 2011

Selective aqueous extraction of organics coupled with trapping by membrane separation
patent, August 1991

Osmotic desalination process
patent, July 2009