Journal of the Japan Institute of Energy
Online ISSN : 1882-6121
Print ISSN : 0916-8753
ISSN-L : 0916-8753
The Study on Cetane Number Improvement of Diesel Fuel
Koutarou HASHIMOTOYuichi KAWAKATSUMitsuru ARAIMasamitsu TAMURA
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1995 Volume 74 Issue 4 Pages 200-204

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Abstract

The effects of alkyl nitrates, alkyl nitrites and organic peroxides on cetane number were investigated to provide the mechanism of the improvement of cetane number improvers. It was found that all the alkyl nitrates, alkyl nitrites and organic peroxides improved cetane number of diesel fuel. In the thermolysis of cetane number improvers, free radicals were formed. Aldehydes, ketones, nitric oxides and nitric diox-ides produced were not concerned with the increment of cetane number. We consider that free radicals have influences on cetane number improvement. The n-alkyl nitrite containing more carbon atoms makes higher improvement on cetane number. The alkyl radicals containing more carbon atoms make higher increment on cetane number.

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