Process for transalkylation of alkyl-aromatic hydrocarbons used in two reaction zones
US7629499B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 9, 2005 |
| Grant date | Dec 8, 2009 |
| Priority date | — |
| Expiry date | Jan 1, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2529/80
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for transalkylation of an alkyl-aromatic hydrocarbon feedstock that has at least 9 carbon atoms per molecule that comprises a) the introduction of said alkyl-aromatic hydrocarbon feedstock at the inlet of a first reaction zone where it is brought into contact with at least a first zeolitic catalyst, b) the introduction of at least a portion of the effluent that is obtained from stage a) and a feedstock that contains benzene and/or toluene at the inlet of a second reaction zone that contains at least a second zeolitic catalyst, and c) the separation of at least a portion of the effluent that is obtained from stage b) is described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.