Process for converting heavy petroleum fractions including an ebulliated bed for producing middle distillates with a low sulfur content
US7390393B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 17, 2006 |
| Grant date | Jun 24, 2008 |
| Priority date | — |
| Expiry date | Aug 17, 2026 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2400/06
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention relates to a process for treating heavy petroleum feedstocks for producing a gas oil fraction that has a sulfur content of less than 50 ppm and most often 10 ppm that includes the following stages: a) ebulliated-bed catalytic hydrocracking, b) separation from hydrogen sulfide of a distillate fraction that includes a gas oil fraction and a heavier fraction than the gas oil, c) hydrotreatment of said distillate fraction, and d) separation of a gas oil fraction with less than 50 ppm of sulfur. Make-up hydrogen, preferably all make-up hydrogen, is to stage c). Advantageously, the heavier fraction from step (b) is subjected to catalytic cracking. The invention also relates to an installation that can be used for implementing this process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.