Recovery of light olefins from dry hydrocarbon gas from refinery and petrochemical production processes for production of alkylate
US12304887B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 15, 2023 |
| Grant date | May 20, 2025 |
| Priority date | — |
| Expiry date | Aug 15, 2043 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2400/20
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Methods and systems for treating an olefin-containing stream are disclosed. The disclosed methods and systems are particularly suitable for treating an off-gas stream in a refining or petrochemical process, such as from a fluid catalytic cracker (FCC), coker, steam cracker, and the like. The stream is treated in an absorber column to reject lighter stream components and to absorb ethylene and/or propylene into a solvent. The solvent is typically isobutane. The enriched solvent stream from the absorber column is fed to an alkylation reactor, which reacts the dissolved olefin with the isobutane solvent to produce an alkylate product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.