Upgrading a C5 olefin stream
US10836691B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 22, 2015 |
| Grant date | Nov 17, 2020 |
| Priority date | — |
| Expiry date | Nov 29, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2400/22
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process is provided including subjecting a raw C5 stream containing C5 diolefins to extractive distillation to form C5 diolefins and a raffinate stream. The process includes subjecting the raffinate stream to dehydrogenation to form additional C5 diolefins, which are recycled to the extractive distillation. Another process includes modifying a C5 diolefin extractive distillation unit by forming a recycle loop with a C5 olefin dehydrogenation reactor. A system is provided that includes a C5 diolefin extractive distillation unit and a C5 olefin dehydrogenation reactor that are arranged in a recycle loop. A process is provided that includes subjecting a raffinate stream containing C5 olefins from an extractive distillation unit to dehydrogenation to form C5 diolefins.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.