ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Dicyclopentadiene hydrogenation in trickle-bed reactor under forced periodic control

David Skála and Jiří Hanika

Institute of Chemical Technology Prague, Technická 5, CZ-16628 Prague 6, Czech Republic

E-mail: hanika@icpf.cas.cz

Received: 24 May 2007  Revised: 13 July 2007  Accepted: 16 July 2007

Abstract: The behavior of a trickle-bed reactor under controlled periodic conditions was investigated. Hydrogenation of dicyclopentadiene (tricyclo(5,2,1,0)-deca-3,8-diene, DCPD) on an egg-shell type palladium catalyst was chosen as a model reaction. Isothermal hydrogenation of DCPD was carried out at atmospheric pressure under a periodic feed rate control regime. Optimal value of the reaction rate was found at period split of 0.5 and period length of 60 s. While the reaction rate increased by 12 % compared to the steady state regime, the selectivity of the DCPD hydrogenation decreased. This result was probably caused by a higher concentration of adsorbed hydrogen on the catalyst surface in the periodic regime.

Keywords: periodic control - trickle-bed reactor - dicyclopentadiene - hydrogenation

Full paper is available at www.springerlink.com.

DOI: 10.2478/s11696-008-0013-3

Chemical Papers 62 (2) 215–218 (2008)