OP-II-3

OP-II-20examined (see Figure 1). The results reveal that stable and uniform slug flow existseven at superficial phase velocities of 10 mm/s and below.Fig. 1.Flow pattern map for alpha-methylstyrene/hydrogen two-phase flow in a square channelwith a hydraulic diameter of 1.0 mm at a temperature of 298 K and a pressure of 1.0 MPa.In reaction studies, the palladium catalyzed hydrogenation of alpha-methylstyreneto cumene at a pressure of 1.0 MPa has been performed in a coated monolithicchannel. The influence of superficial liquid and gas velocities on reactor performancecharacterized by conversion per pass, space time yield and catalyst utilization arediscussed and compared with the performance parameters of a conventional tricklebedreactor.References:[1]. Dudukovic, M.P., Larachi, F; Mills, P.L. (2002). Catal. Rev. Sci. Eng., 44 (1), 123-246.[2]. Boger, T., Zieverink, M.P., Kreutzer, M.T., Kapteijn, F., Moulijn, J.A. and Addiego, W.P. (2004).Ind. Eng. Chem. Res., 43, 2337-2344.[3]. Edvinsson, R. and Cybulski, A. (1994). Chem. Eng. Sci., 49 (248), 5653-5566.[4]. Nijhuis, TA; Dautzenberg, FM; Moulijn, JA, (2003). Chem. Eng. Sci., 58 (7),1113-1124.[5]. Enache, D.I., Landon, P; Lok, C.M. (2005). Ind. Eng. Chem. Res., 44 (25), 9431-9439.Acknowledgement:The authors gratefully acknowledge the Deutsche Forschungsgemeinschaft (DFG) forfinancial support of the project.137