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Title: Low emissions diesel fuel

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