Processes for separating an isobutane recycle stream from a mixed C4 stream
US9452956B1 · kind B1 · utility
1Cited by
6References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 29, 2015 |
| Grant date | Sep 27, 2016 |
| Priority date | — |
| Expiry date | May 29, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2523/755
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Processes for providing an isobutane recycle stream to be recycled to a dehydrogenation zone. In some embodiments a dividing wall column is used to separate a hydrogenation effluent. The hydrogenation effluent may include olefins, or it may be fully saturated. A hydrogenation zone may include a nickel based catalyst and may fully saturate dienes and olefins, or only hydrogenate dienes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.