Hydrocracking process and device with reduction of polynuclear aromatic compounds
US11459514B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 21, 2017 |
| Grant date | Oct 4, 2022 |
| Priority date | — |
| Expiry date | Aug 21, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2400/30
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
In the hydrocracking process in accordance with the invention, which comprises a hydrocracking section, a high pressure hot separator and a fractionation section, upstream of the fractionation section, a stripper or reboiler column type separation column is added which treats at least a portion of the heavy effluent obtained from the high pressure hot separator. All or a portion of the bottom fraction from said column, which is rich in polynuclear aromatic compounds, is purged. At least a portion of the bottom fraction obtained from the fractionation section, which is constituted by unconverted products, is recycled to the reaction section.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.