Integrated hydrotreating, solvent deasphalting and steam pyrolysis process for direct processing of a crude oil
US9382486B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 17, 2013 |
| Grant date | Jul 5, 2016 |
| Priority date | — |
| Expiry date | Jun 7, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2400/30
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process is provided that is directed to a steam pyrolysis zone integrated with a hydrotreating zone and a solvent deasphalting zone to permit direct processing of crude oil feedstocks to produce petrochemicals including olefins and aromatics. The integrated hydrotreating, solvent deasphalting and steam pyrolysis process comprises charging the crude oil to a hydroprocessing zone to produce a hydroprocessed effluent; charging the hydroprocessed effluent to a solvent deasphalting zone to produce a deasphalted and demetalized oil stream and a bottom asphalt phase; thermally cracking the deasphalted and demetalized oil stream in the presence of steam to produce a mixed product stream; separating the mixed product stream; purifying hydrogen recovered from the mixed product stream and recycling it to the hydroprocessing zone; recovering olefins and aromatics from the separated mixed product stream; and recovering pyrolysis fuel oil from the separated mixed product stream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.