Process for the conversion of heavy feedstocks such as heavy crude oils and distillation residues
US8123932B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 12, 2003 |
| Grant date | Feb 28, 2012 |
| Priority date | — |
| Expiry date | Jan 26, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2400/06
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for the conversion of heavy feedstocks using hydrotreatment, distillation or flash, and deasphalting that includes mixing a heavy feedstock with a hydrogenation catalyst and subjecting the thus-formed mixture to a hydrotreatment reactor for reaction with one or more of hydrogen and hydrogen sulfide to form a first product stream; subjecting the first product stream to a distillation or flash to form a plurality of distillate fractions; and recycling heavies from the distillation residue and/or tar by deasphalting in the presence of a solvent; where the hydrotreatment reaction product is pre-separated under high pressure to form light and heavy fractions and sending the heavy fraction to the distillation and/or flash.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.