Apparatuses and methods for separating paraffin isomerization-zone effluents
US8864952B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 14, 2012 |
| Grant date | Oct 21, 2014 |
| Priority date | — |
| Expiry date | Dec 14, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2300/1081
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Embodiments of apparatuses and methods for separating a paraffin isomerization-zone effluent are provided. In one example, an apparatus comprises a DIB column configured for fractionating the paraffin isomerization-zone effluent to form a branched C4 hydrocarbon-rich stream. The DIB column comprises a vessel. The vessel comprises a cylindrical wall that extends vertically and that encloses an internal cylindrical volume having a lower portion extending to an upper portion. An internal swage is disposed in the lower portion of the internal cylindrical volume. A plurality of fractionation trays includes an upper fractionation tray that is disposed in the internal cylindrical volume above the internal swage and a lower fractionation tray that is disposed in the internal swage. The lower fractionation tray has a smaller diameter than the upper fractionation tray.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.