Process for the production of middle distillates by two-step hydroisomerisation and hydrocracking of feeds from the Fischer-Tropsch process
US7220349B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 8, 2002 |
| Grant date | May 22, 2007 |
| Priority date | — |
| Expiry date | Sep 16, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2400/08
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention concerns a process for producing middle distillates from an effluent produced by a Fischer-Tropsch unit, comprising optional fractionation to obtain at least one heavy fraction with an initial boiling point in the range 120-200° C., said heavy fraction or said effluent optionally being hydrotreated, then bringing it into contact with a first amorphous hydrocracking/hydroisomerization catalyst that contains at least one noble group VIII metal, the effluent obtained is distilled, then the residual fraction boiling above the middle distillates and/or a portion of the middle distillates is brought into contact with a second amorphous hydrocracking/hydroisomerization catalyst containing at least one noble group VIII metal. The invention also concerns a unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.