Method for improving a gas oil fraction cetane index
US6814856B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 4, 2000 |
| Grant date | Nov 9, 2004 |
| Priority date | — |
| Expiry date | May 4, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2400/04
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for transforming a gas oil cut from a conversion process or from an aromatic crude is described, the aim of the process being to improve the cetane number of said cut. The process comprises at least one hydrogenation step in which said gas oil cut is passed, in the presence of hydrogen, over a catalyst comprising an amorphous mineral support, at least one compound of a group VIB metal, at least one compound of a non noble group VIII metal and at least phosphorous or a compound of phosphorous, the process then comprising a hydrocracking step in which the hydrogenated feed is passed, in the presence of hydrogen, over a catalyst comprising an acidic support, at least one compound of a group VIB metal and at least one compound of a non noble group VIII metal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.