skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

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:
; ;
Publication Date:
Research Org.:
Idaho National Lab. (INL), Idaho Falls, ID (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1568641
Patent Number(s):
10,363,336
Application Number:
13/480,053
Assignee:
Battelle Energy Alliance, LLC (Idaho Falls, ID)
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.
Wilson, Aaron D., Stewart, Frederick F., & Stone, Mark L. Methods and systems for treating liquids using switchable solvents. United States.
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.
@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}
}

Patent:

Save / Share:

Works referenced in this record:

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