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

Title: Low emissions diesel fuel

Abstract

A method and matter of composition for controlling NO.sub.x emissions from existing diesel engines. The method is achieved by adding a small amount of material to the diesel fuel to decrease the amount of NO.sub.x produced during combustion. Specifically, small amounts, less than about 1%, of urea or a triazine compound (methylol melamines) are added to diesel fuel. Because urea and triazine compounds are generally insoluble in diesel fuel, microemulsion technology is used to suspend or dissolve the urea or triazine compound in the diesel fuel. A typical fuel formulation includes 5% t-butyl alcohol, 4.5% water, 0.5% urea or triazine compound, 9% oleic acid, and 1% ethanolamine. The subject invention provides improved emissions in heavy diesel engines without the need for major modifications.

Inventors:
 [1];  [2];  [3];  [4]
  1. (Knoxville, TN)
  2. (Oak Ridge, TN)
  3. (Farragut, TN)
  4. (Kingston, TN)
Issue Date:
Research Org.:
LOCKHEED MARTIN ENRGY SYST INC
OSTI Identifier:
871519
Patent Number(s):
5746783
Assignee:
Martin Marietta Energy Systems, Inc. (Oak Ridge, TN) ORNL
DOE Contract Number:  
AC05-84OR21400
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
emissions; diesel; fuel; method; matter; composition; controlling; existing; engines; achieved; adding; amount; material; decrease; produced; combustion; specifically; amounts; urea; triazine; compound; methylol; melamines; added; compounds; insoluble; microemulsion; technology; suspend; dissolve; typical; formulation; t-butyl; alcohol; water; oleic; acid; ethanolamine; subject; provides; improved; heavy; major; modifications; diesel engines; diesel engine; provides improved; diesel fuel; oleic acid; /44/

Citation Formats

Compere, Alicia L., Griffith, William L., Dorsey, George F., and West, Brian H. Low emissions diesel fuel. United States: N. p., 1998. Web.
Compere, Alicia L., Griffith, William L., Dorsey, George F., & West, Brian H. Low emissions diesel fuel. United States.
Compere, Alicia L., Griffith, William L., Dorsey, George F., and West, Brian H. Thu . "Low emissions diesel fuel". United States. https://www.osti.gov/servlets/purl/871519.
@article{osti_871519,
title = {Low emissions diesel fuel},
author = {Compere, Alicia L. and Griffith, William L. and Dorsey, George F. and West, Brian H.},
abstractNote = {A method and matter of composition for controlling NO.sub.x emissions from existing diesel engines. The method is achieved by adding a small amount of material to the diesel fuel to decrease the amount of NO.sub.x produced during combustion. Specifically, small amounts, less than about 1%, of urea or a triazine compound (methylol melamines) are added to diesel fuel. Because urea and triazine compounds are generally insoluble in diesel fuel, microemulsion technology is used to suspend or dissolve the urea or triazine compound in the diesel fuel. A typical fuel formulation includes 5% t-butyl alcohol, 4.5% water, 0.5% urea or triazine compound, 9% oleic acid, and 1% ethanolamine. The subject invention provides improved emissions in heavy diesel engines without the need for major modifications.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {1}
}

Patent:

Save / Share: