Diesel fuel composition

Details Diesel fuel composition Diesel fuel composition

C - Chemistry, Metallurgy

10

L

C10L 1/18 (2006.01) C10L 1/02 (2006.01)

Patent

CA 2393494

This invention is a method of reducing particulate matter emission from internal combustion engines which use a diesel fuel composition comprising a major amount of a diesel fuel having a base fuel which contains no more than 10 % by weight of olefins and no more than 10 % by weight of esters, by admixing said fuel with greater than 5 % by weight based on the total composition of a saturated, aliphatic monohydric alcohol having on an average from 4 to 20 carbon atoms, one or more ketones having on an average 5 to 25 carbons and mixture of said alcohol(s) and ketone(s). The amount of the oxygenate in the fuel composition is sufficient to provide the fuel with at least 0.5 % by weight of oxygen. The oxygenate significantly reduce particular emissions from the exhausts of diesel powered engines.

L'invention concerne un procédé pour réduire les émissions de particules des moteurs à combustion interne; il est basé sur l'utilisation d'une composition de carburant diesel comportant un carburant de base qui contient pas plus de 10 % en poids d'oléfines et pas plus de 10 % en poids d'esters, le carburant étant mélangé dans des proportions supérieures à 5 % en poids d'un alcool saturé aliphatique monohydrique possédant entre 4 et 20 atomes de carbone, un cétone possédant en moyenne de 5 à 25 carbones et un mélange de ce(s) alcool(s) et cétone(s). La quantité du composé oxygéné dans la composition de carburant est suffisante pour enrichir le carburant d'au moins 0,5 % en poids d'oxygène. Le composé oxygéné réduit sensiblement les émissions particulaires dues aux gaz d'échappement des moteurs diesel.

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