Process for isomerizing a feed stream including one or more C4-C6 hydrocarbons
US8692046B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 13, 2011 |
| Grant date | Apr 8, 2014 |
| Priority date | — |
| Expiry date | Mar 27, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2400/02
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
One exemplary embodiment can be a process for isomerizing a feed stream including one or more C4-C6 hydrocarbons. The process may include contacting the feed stream in an isomerization reaction zone with an isomerization catalyst at isomerization conditions to produce an isomerization zone effluent; passing at least a portion of the isomerization zone effluent to a stabilizer zone and recovering a stabilizer overhead stream, a bottom stream, and a stripper feed stream; passing the stripper feed stream to a stripping zone and separating the stripper feed stream into a stripper overhead stream and a stripper bottom stream; and recycling at least a portion of the stripper bottom stream to a deisopentanizer zone and passing a stream from the deisopentanizer zone to the isomerization reaction zone. Usually, the stabilizer overhead stream includes one or more C5− hydrocarbons, the bottom stream includes at least about 85%, by weight, one or more C6+ hydrocarbons, and a stripper feed stream including at least about 10%, by weight, one or more C5+ hydrocarbons. Often, a stripper overhead stream includes at least about 5%, by weight, one or more C4− hydrocarbons and a stripper bottom stream…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.