Method of making diethylbenzene

US8779227B2 · kind B2 · utility

Assignee

• KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS · SA

Inventors

• Sulaiman Saleh Al-Khattaf · Dhahran, SA
• Taiwo Odedairo · Dhahran, SA

Key dates

• Filing date: Sep 5, 2012
• Grant date: Jul 15, 2014
• Expiry date: Jan 8, 2033

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C2529/40
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The method of making diethylbenzene selectively produces diethylbenzene by reacting ethylbenzene and ethanol over a zeolite catalyst, such as ZSM-5. The zeolite catalyst is first heated in argon gas within a reaction chamber. The zeolite catalyst is then selectively coked with a precursor mixture of ethylbenzene and ethanol. Argon gas is then flowed over the coked zeolite catalyst, and a reaction mixture of ethylbenzene and ethanol is injected into the reaction chamber to produce diethylbenzene, which is then removed from within the reaction chamber.