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Title: Methods for recovering a polar solvent from a fluid stream contaminated with at least one polar impurity

Abstract

A method of removing a polar solvent from a fluid volume contaminated with at least one polar impurity, such as a free fatty acid, is provided. The method comprises providing a fluid volume that includes at least one polar impurity dissolved in at least one solvent. The fluid volume is contacted with an expanding gas to remove the at least one solvent. The expanding gas may be dissolved into the at least one solvent in the fluid volume to form a gas-expanded solvent. The immiscibility of the polar impurities in the gas-expanded solvent enables separation of the polar impurities from the gas-expanded solvent. After separation of the polar impurities, at least one of the temperature and pressure may be reduced to separate the solvent from the expanding gas such that the clean solvent may be reused.

Inventors:
;
Issue Date:
Research Org.:
Idaho National Lab. (INL), Idaho Falls, ID (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1080426
Patent Number(s):
8,308,954
Application Number:
12/238,225
Assignee:
Battelle Energy Alliance, LLC (Idaho Falls, ID)
DOE Contract Number:  
AC07-05ID 14517
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Ginosar, Daniel M., and Wendt, Daniel S. Methods for recovering a polar solvent from a fluid stream contaminated with at least one polar impurity. United States: N. p., 2012. Web.
Ginosar, Daniel M., & Wendt, Daniel S. Methods for recovering a polar solvent from a fluid stream contaminated with at least one polar impurity. United States.
Ginosar, Daniel M., and Wendt, Daniel S. Tue . "Methods for recovering a polar solvent from a fluid stream contaminated with at least one polar impurity". United States. https://www.osti.gov/servlets/purl/1080426.
@article{osti_1080426,
title = {Methods for recovering a polar solvent from a fluid stream contaminated with at least one polar impurity},
author = {Ginosar, Daniel M. and Wendt, Daniel S.},
abstractNote = {A method of removing a polar solvent from a fluid volume contaminated with at least one polar impurity, such as a free fatty acid, is provided. The method comprises providing a fluid volume that includes at least one polar impurity dissolved in at least one solvent. The fluid volume is contacted with an expanding gas to remove the at least one solvent. The expanding gas may be dissolved into the at least one solvent in the fluid volume to form a gas-expanded solvent. The immiscibility of the polar impurities in the gas-expanded solvent enables separation of the polar impurities from the gas-expanded solvent. After separation of the polar impurities, at least one of the temperature and pressure may be reduced to separate the solvent from the expanding gas such that the clean solvent may be reused.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2012},
month = {11}
}

Patent:

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