Process for the selective production of alkylbenzenes
US4523048A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 4, 1984 |
| Grant date | Jun 11, 1985 |
| Priority date | — |
| Expiry date | Apr 4, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2527/1206
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
An improved process for the production of alkylaromatic hydrocarbons is disclosed. Paraffinic hydrocarbons are dehydrogenated to yield an olefin-containing stream, which is later charged to an alkylation zone for reaction with an aromatic hydrocarbon. The olefin-containing stream is first passed through a selective hydrogenation zone in which diolefins are converted to monoolefins by contact with a selective catalyst. This increases the yield and the quality of the product alkylate by greatly reducing the production of biphenyl compounds and oligomers in the alkylation zone. The selective hydrogenation zone is located between the vapor-liquid separator and stripper column of the dehydrogenation zone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.