Oxygen-containing diesel fuel, process and catalyst for producing same
AssigneeIntevep, S.A.
InventorRoberto Galiasso
Life of this patent
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Abstract
A process for upgrading a diesel fuel, includes the steps of providing a diesel fuel feedstock; hydrogenating the feedstock at a pressure of less than about 600 psig so as to provide a hydrogenated product wherein a portion of the feedstock is converted to alkyl-naphthene-aromatic compounds; and selectively oxidizing the hydrogenated product in the presence of a catalyst so as to convert the alkyl-naphthene-aromatic compounds to alkyl ketones. A catalyst and oxygen-containing Diesel fuel are also provided.
Claims21
A process for upgrading a diesel fuel, comprising the steps of:
- providing a diesel fuel feedstock;
- hydrogenating the feedstock at a pressure of less than about 600 psig so as to provide a hydrogenated product wherein a portion of the feedstock is converted to alkyl-naphthene-aromatic compounds;
- and
- selectively oxidizing the hydrogenated product in the presence of a catalyst so as to convert the alkyl-naphthene-aromatic compounds to alkyl ketones.
An oxygen containing diesel fuel which contains at least about 0.1%wt of oxygen in ketone-type molecules bound to alkyl-naphthene compounds, wherein the oxygen is substantially distributed over a distillation range of the fuel.
A catalyst for selective oxidation of alkyl-naphthene-aromatic compounds, the catalyst comprising between about 1% and about 5% wt of an element selected from the group consisting of oxides of Co, Ni, Fe, Cr, Cu and mixtures thereof;
- an oxide promoter in an amount between about 300 and about 10,000 wt ppm, and a nitrogen compound deposited on a support and being present in an amount between about 1% and about 4% wt.
Dependencies are inferred from the claim text.