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Title: Methods for recovering a solvent from a fluid volume and methods of removing at least one compound from a nonpolar solvent

Abstract

A method of removing a nonpolar solvent from a fluid volume that includes at least one nonpolar compound, such as a fat, an oil or a triglyceride, is provided. The method comprises contacting a fluid volume with an expanding gas to expand the nonpolar solvent and form a gas-expanded solvent. The gas-expanded solvent may have a substantially reduced density in comparison to the at least one nonpolar compound and/or a substantially reduced capacity to solubilize the nonpolar compound, causing the nonpolar compounds to separate from the gas-expanded nonpolar solvent into a separate liquid phase. The liquid phase including the at least one nonpolar compound may be separated from the gas-expanded solvent using conventional techniques. After separation of the liquid phase, at least one of the temperature and pressure may be reduced to separate the nonpolar solvent from the expanding gas such that the nonpolar solvent may be recovered and reused.

Inventors:
; ;
Issue Date:
Research Org.:
Idaho National Lab. (INL), Idaho Falls, ID (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1245978
Patent Number(s):
8747673
Application Number:
13/177,962
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
DOE Contract Number:  
AC07-05ID14517
Resource Type:
Patent
Resource Relation:
Patent File Date: 2011 Jul 07
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 09 BIOMASS FUELS

Citation Formats

Ginosar, Daniel M., Wendt, Daniel S., and Petkovic, Lucia M.. Methods for recovering a solvent from a fluid volume and methods of removing at least one compound from a nonpolar solvent. United States: N. p., 2014. Web.
Ginosar, Daniel M., Wendt, Daniel S., & Petkovic, Lucia M.. Methods for recovering a solvent from a fluid volume and methods of removing at least one compound from a nonpolar solvent. United States.
Ginosar, Daniel M., Wendt, Daniel S., and Petkovic, Lucia M.. Tue . "Methods for recovering a solvent from a fluid volume and methods of removing at least one compound from a nonpolar solvent". United States. https://www.osti.gov/servlets/purl/1245978.
@article{osti_1245978,
title = {Methods for recovering a solvent from a fluid volume and methods of removing at least one compound from a nonpolar solvent},
author = {Ginosar, Daniel M. and Wendt, Daniel S. and Petkovic, Lucia M.},
abstractNote = {A method of removing a nonpolar solvent from a fluid volume that includes at least one nonpolar compound, such as a fat, an oil or a triglyceride, is provided. The method comprises contacting a fluid volume with an expanding gas to expand the nonpolar solvent and form a gas-expanded solvent. The gas-expanded solvent may have a substantially reduced density in comparison to the at least one nonpolar compound and/or a substantially reduced capacity to solubilize the nonpolar compound, causing the nonpolar compounds to separate from the gas-expanded nonpolar solvent into a separate liquid phase. The liquid phase including the at least one nonpolar compound may be separated from the gas-expanded solvent using conventional techniques. After separation of the liquid phase, at least one of the temperature and pressure may be reduced to separate the nonpolar solvent from the expanding gas such that the nonpolar solvent may be recovered and reused.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2014},
month = {6}
}

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