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Title: Process for producing biodiesel, lubricants, and fuel and lubricant additives in a critical fluid medium

Abstract

A process for producing alkyl esters useful in biofuels and lubricants by transesterifying glyceride- or esterifying free fatty acid-containing substances in a single critical phase medium is disclosed. The critical phase medium provides increased reaction rates, decreases the loss of catalyst or catalyst activity and improves the overall yield of desired product. The process involves the steps of dissolving an input glyceride- or free fatty acid-containing substance with an alcohol or water into a critical fluid medium; reacting the glyceride- or free fatty acid-containing substance with the alcohol or water input over either a solid or liquid acidic or basic catalyst and sequentially separating the products from each other and from the critical fluid medium, which critical fluid medium can then be recycled back in the process. The process significantly reduces the cost of producing additives or alternatives to automotive fuels and lubricants utilizing inexpensive glyceride- or free fatty acid-containing substances, such as animal fats, vegetable oils, rendered fats, and restaurant grease.

Inventors:
;
Issue Date:
Research Org.:
Idaho National Lab. (INL), Idaho Falls, ID (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1175334
Patent Number(s):
6887283
Application Number:
09/554,708
Assignee:
Bechtel BWXT Idaho, LLC (Idaho Falls, ID)
Patent Classifications (CPCs):
C - CHEMISTRY C11 - ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES C11C - FATTY ACIDS FROM FATS, OILS OR WAXES
C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10M - LUBRICATING COMPOSITIONS
DOE Contract Number:  
AC07-94ID13223
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
09 BIOMASS FUELS

Citation Formats

Ginosar, Daniel M., and Fox, Robert V. Process for producing biodiesel, lubricants, and fuel and lubricant additives in a critical fluid medium. United States: N. p., 2005. Web.
Ginosar, Daniel M., & Fox, Robert V. Process for producing biodiesel, lubricants, and fuel and lubricant additives in a critical fluid medium. United States.
Ginosar, Daniel M., and Fox, Robert V. Tue . "Process for producing biodiesel, lubricants, and fuel and lubricant additives in a critical fluid medium". United States. https://www.osti.gov/servlets/purl/1175334.
@article{osti_1175334,
title = {Process for producing biodiesel, lubricants, and fuel and lubricant additives in a critical fluid medium},
author = {Ginosar, Daniel M. and Fox, Robert V.},
abstractNote = {A process for producing alkyl esters useful in biofuels and lubricants by transesterifying glyceride- or esterifying free fatty acid-containing substances in a single critical phase medium is disclosed. The critical phase medium provides increased reaction rates, decreases the loss of catalyst or catalyst activity and improves the overall yield of desired product. The process involves the steps of dissolving an input glyceride- or free fatty acid-containing substance with an alcohol or water into a critical fluid medium; reacting the glyceride- or free fatty acid-containing substance with the alcohol or water input over either a solid or liquid acidic or basic catalyst and sequentially separating the products from each other and from the critical fluid medium, which critical fluid medium can then be recycled back in the process. The process significantly reduces the cost of producing additives or alternatives to automotive fuels and lubricants utilizing inexpensive glyceride- or free fatty acid-containing substances, such as animal fats, vegetable oils, rendered fats, and restaurant grease.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2005},
month = {5}
}

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