Dehydrogenation of ethylbenzene

US5856605A · kind A · utility

Assignee

• BASF SE

Inventors

• Axel Deimling · Neustadt, DE
• Wilhelm Ruppel · Mannheim, DE
• Uwe Behling · Frankenthal (Pfalz), DE
• Dieter Biedenkapp · Frankenthal (Pfalz), DE

Key dates

• Filing date: May 20, 1997
• Grant date: Jan 5, 1999
• Expiry date: May 20, 2017

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C5/333
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A process for the dehydrogenation of ethylbenzene to styrene with input of heat by a heat-transfer medium on a dehydrogenation catalyst which is essentially located in a tube bundle, wherein the heat-transfer medium flows countercurrently to the reaction mixture in the region of the tube bundle, and, if required, another reaction chamber is located downstream of the tube bundle and is provided with a catalyst for adiabatic reaction.