Hydrocarbon pyrolysis processes
US11473023B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 7, 2019 |
| Grant date | Oct 18, 2022 |
| Priority date | — |
| Expiry date | Feb 7, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2400/30
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A hydrocarbon conversion process comprises pyrolysing at a temperature ≥700° C. a feedstock comprising hydrocarbon to produce a pyrolysis effluent comprising at least one C2 to C4 olefin and C5+ aliphatic and aromatic hydrocarbons. The pyrolysis effluent is contacted with an oleaginous quench stream to reduce the temperature of the pyrolysis effluent to ≤400° C. At least first and second streams are separated from the cooled effluent. The first stream comprises at least one C2 to C4 olefin, and the second stream comprises a quench oil having an average boiling point at atmospheric pressure of at least 120° C. At least a portion of the second stream is catalytically hydroprocessed to produce a hydroprocessed stream, which is combined with at least a portion of any remainder of the second stream to form the quench stream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.