Oxidative dehydrogenation of ethylbenzene on activated carbon catalysts 2. Kinetic modelling

• Type: Article in International Scientific Journal
• Date: 2000

Authors

Manuel Fernando R. Pereira (Author) FEUP; José Melo Orfão (Author) FEUP; José Luis Figueiredo (Author) FEUP

Journal

Title: Applied Catalysis A: General

Vol. 196 No. 1

Pages: 43-54

ISSN: 0926-860X

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 66 Citations

Scopus - 81 Citations

Other information

Authenticus ID: P-001-0HG

DOI: 10.1016/s0926-860x(99)00447-0

Abstract (EN): A detailed kinetic study of the oxidative dehydrogenation of ethylbenzene in the presence of an activated carbon catalyst is presented. The partial pressures of ethylbenzene and oxygen, as well as temperature, were varied one at a time, covering a wide range of experimental conditions. The experimental results were found to be well described by a kinetic model in which the main reaction occurs by a redox mechanism involving quinone/hydroquinone groups on the surface of the carbon catalyst. The activation energies determined for the main reaction and for the formation of carbon oxides are comparable to those determined on coked oxide catalysts.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 12