Two-stage hydrocracking process comprising a hydrogenation stage upstream of the second hydrocracking stage, for the production of middle distillates
US11597884B2 · kind B2 · utility
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Key dates
| Filing date | Jan 2, 2020 |
| Grant date | Mar 7, 2023 |
| Priority date | — |
| Expiry date | Jan 2, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2300/4025
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention is based on the use of a two-step hydrocracking process comprising a step of hydrogenation placed upstream of the second hydrocracking step, the hydrogenation step treating the unconverted liquid fraction separated in the distillation step in the presence of a specific hydrogenation catalyst. Furthermore, the hydrogenation step and second hydrocracking step are carried out under specific operating conditions and in particular under very specific temperature conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.