Low emissions diesel fuel

Patent · Tue May 05 00:00:00 EDT 1998

OSTI ID:871519

Compere, Alicia L ^[1]; Griffith, William L ^[2]; Dorsey, George F ^[3]; West, Brian H ^[4]

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1. Knoxville, TN
2. Oak Ridge, TN
3. Farragut, TN
4. Kingston, TN

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: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• 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

Related Subjects

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
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