Process for the alkylation of aromatics

US5750814A · kind A · utility

Assignee

• Fina Research, S.A. · BE

Inventors

• Jacques Grootjans · Leefdaal, BE
• Pierre Belloir · Braine-l'Alleud, BE
• Eric Romers · Limelette, BE

Key dates

• Filing date: Jun 6, 1995
• Grant date: May 12, 1998
• Expiry date: Jun 6, 2015

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10G69/12
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A improved process is provided for the alkylation of aromatic compounds under at least partial liquid phase conditions, and in the presence of a zeolite-type alkylation/transalkylation catalyst. In accordance with the present process, a diluted aromatic hydrocarbon feedstock containing C.sub.5 -C.sub.7 olefins is brought into contact with a diluted olefinic feedstream in the presence of the alkylation/transalkylation catalyst. Prior to contact with the olefinic feedstream, C.sub.5 -C.sub.7 olefins present in the aromatic hydrocarbon feedstock are selectively hydrogenated.