Reduced particulate forming distillate fuels

Details Reduced particulate forming distillate fuels Reduced particulate forming distillate fuels

C - Chemistry, Metallurgy

10

L

C10L 1/02 (2006.01) C10G 27/12 (2006.01) C10G 67/12 (2006.01) C10L 1/18 (2006.01) C10L 1/182 (2006.01) C10L 1/185 (2006.01) C10L 10/02 (2006.01)

Patent

CA 2390102

Distillate fuel is selectively oxidised, preferably by hydrogen peroxide in the presence of a titanium silicalite catalyst to produce hydroxyl and/or carbonyl groups bonded to paraffinic carbon atoms of the diesel fuel molecules to provide at least 0.1 wt %, preferably at least 0.3 wt %, oxygen in the fuel. The fuel, which yields lower particulate emissions on combustion preferably, has a low sulphur, polycyclic aromatics and olefin content and a high cetane number.

Selon la présente invention, on oxyde sélectivement un mazout léger, de préférence au moyen de peroxyde d'hydrogène en présence d'un catalyseur silicalite de titane, afin de produire des groupes hydroxyles et/ou carbonyles liés aux atomes de carbone paraffiniques des molécules du carburant diesel de façon que l'on obtient au moins 0,1 % en poids et de préférence au moins 0,3 % en poids d'oxygène dans le carburant. Le carburant de l'invention, qui produit moins d'émissions particulaires lors de la combustion, possède une faible teneur en soufre, en hydrocarbures aromatiques polycycliques et en oléfines, et un nombre élevé de cétanes.

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