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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):
8308954
Application Number:
12/238,225
Assignee:
Battelle Energy Alliance, LLC (Idaho Falls, ID)
Patent Classifications (CPCs):
C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10G - CRACKING HYDROCARBON OILS
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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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Works referenced in this record:

Simple quantitative transesterification of lipids 1. introduction
journal, January 1996


Synthesis of Oleic Acid Esters Catalyzed by Immobilized Lipase
journal, January 1996


Reactions in supercritical fluids - a review
journal, January 1986


Liquid and supercritical carbon dioxide as organic solvents
journal, December 1984


Comparison of lipase-catalysed esterification in supercritical carbon dioxide and in n-hexane
journal, January 1990


Biodiesel from vegetable oils via transesterification in supercritical methanol
journal, November 2002


Promotion of a lipase-catalyzed esterification in supercritical carbon dioxide in the near-critical region
journal, June 1996


Esterification activity of lipase entrapped in reverse micelles formed in liquefied gas.
journal, January 1996


Methanolysis of seed oils in flowing supercritical carbon dioxide
journal, March 1996


Enzyme catalyzed reactions in dense gases
journal, October 1998


Enzymic esterification of fatty acid mixtures from milk fat and anhydrous milk fat with canola oil in supercritical carbon dioxide
journal, November 1992


Biocatalytic Esterification in Supercritical Carbon Dioxide by Using a Lipid-coated Lipase
journal, September 1998


Ester synthesis in lipase-catalyzed reactions
journal, November 1998


Process parameters influencing ethanolysis of cod liver oil in supercritical carbon dioxide
journal, March 1998


Enantioselective Esterification of 2-Arylpropionic Acids Catalyzed by Immobilized Rhizomucor miehei Lipase
journal, March 1997


Biodiesel production: a review
journal, October 1999


Reactions at supercritical conditions: Applications and fundamentals
journal, July 1995


Biodiesel fuel production by transesterification of oils
journal, January 2001


Continuous reaction-separation process for enzymatic esterification in supercritical carbon dioxide
journal, March 1994


Enhancement of Enantioselectivity by Altering Alcohol Concentration for Esterification in Supercritical CO2.
journal, January 1999


Enzymatic Reaction in Supercritical Fluid Carbon Dioxide Using Dry-Ice
journal, October 1999


Supercritical fluids: an interesting medium for chemical and biochemical processes
journal, September 1997


Enzymatic catalysis in supercritical carbon dioxide: Comparison of different lipases and a novel esterase
journal, January 1996


The role of the reaction medium in lipase-catalyzed esterifications and transesterifications
journal, June 1998


Subtilisin-catalyzed transesterification in supercritical carbon dioxide
journal, September 1989


Chemical Reactions in Supercritical Fluids. [超臨界流体中における化学反応]
journal, January 1995


Lipase Catalysed Esterification at High Pressure
journal, January 1994


Lipase-catalyzed alcoholysis with supercritical carbon dioxide extraction 2: Phase behavior
journal, November 1997


Enzymatic synthesis of oleyl oleate in dense fluids
journal, November 1995


Internal Mass Transfer Limitation During Enzymatic Esterification in Supercritical Carbon Dioxide and Hexane
journal, January 1995


Kinetics of lipase-catalyzed esterification in supercritical CO2
journal, February 1992


Transesterification between triolein and ethylbehenate by immobilized lipase in supercritical carbon dioxide
journal, January 1996


Lipase-catalysed esterification in supercritical carbon dioxide and in hexane
journal, February 1997


Enzymatic interesterification in supercritical carbon dioxide.
journal, January 1988


Promotion of lipase-catalyzed esterification of N-valeric acid and citronellol in supercritical carbon dioxide in the near-critical region.
journal, January 1996


Solubilities of methyl oleate, oleic acid, oleyl glycerols, and oleyl glycerol mixtures in supercritical carbon dioxide
journal, February 1991


Esterification of oleic acid by methanol catalyzed by p-toluenesulfonic acid and the cation-exchange resins K2411 and K1481 in supercritical carbon dioxide
journal, September 1993


Continuous synthesis of ethyl myristate by enzymatic reaction in supercritical carbon dioxide
journal, June 1993


Supercritical Biocatalysis
journal, February 1999