Alkylation-transalkylation process using stripping to produce a dry transalkylation feed
US5847253A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 18, 1997 |
| Grant date | Dec 8, 1998 |
| Priority date | — |
| Expiry date | Mar 18, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C15/085
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for the production of alkylaromatic hydrocarbons that operates with a high water content in an alkylation zone and a low water content in a transalkylation zone is disclosed. An aromatic feed and an acyclic feed are first passed through the alkylation reaction zone that operates at a high water content. A stripping column receives the effluent of the alkylation reaction zone, removes water and unreacted aromatic feed and produces a bottom stream containing unreacted aromatic feed and alkylated aromatics. A recycle column receives the bottom stream and produces an overhead stream of unreacted aromatic feed having a low water content. The overhead stream and a stream of polyalkylated aromatics are contacted in the transalkylation zone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.