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Low emissions diesel fuel

Patent ·
OSTI ID:871519
 [1];  [2];  [3];  [4]
  1. Knoxville, TN
  2. Oak Ridge, TN
  3. Farragut, TN
  4. Kingston, TN
+ Show Author Affiliations

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.

Research Organization:
LOCKHEED MARTIN ENRGY SYST INC
DOE Contract Number:
AC05-84OR21400
Assignee:
Martin Marietta Energy Systems, Inc. (Oak Ridge, TN)
Patent Number(s):
US 5746783
OSTI ID:
871519
Country of Publication:
United States
Language:
English

References (5)

Analytical scattering function of a polydisperse Percus-Yevick fluid with Schulz- ( Γ -) distributed diameters journal March 1987
Effect of composition on sizes of W/O ethanolamine-oleic acid microemulsions by small-angle neutron scattering journal March 1989
Small-angle neutron scattering from micelles of potassium salts of 18-carbon fatty acids journal September 1989
Alcohol partition in a water-in-oil microemulsion from small-angle neutron scattering journal June 1992
High-Alcohol Microemulsion Fuel Performance in a Diesel Engine
  • West, B. H.; Compere, A. L.; Griffith, W. L.
  • International Fuels & Lubricants Meeting & Exposition, SAE Technical Paper Series https://doi.org/10.4271/902101
conference October 1990

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Related Subjects

/44/
achieved
acid
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amount
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combustion
composition
compound
compounds
controlling
decrease
diesel
diesel engine
diesel engines
diesel fuel
dissolve
emissions
engines
ethanolamine
existing
formulation
fuel
heavy
improved
insoluble
major
material
matter
melamines
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oleic
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provides improved
specifically
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t-butyl
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triazine
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urea
water