Collect. Czech. Chem. Commun. 1990, 55, 2161-2168

Internal diffusion in the extruded catalyst particle with tetralobe cross section

Jiří Hanika

Department of Organic Technology, Prague Institute of Chemical Technology, 166 28 Prague 6


The problem of internal diffusion in the catalyst particle of geometrical cross profile in the tetralobe shape is solved numerically for the case of the 1st order reaction taking place under isothermal conditions. The calculated values of the effectiveness factor of internal diffusion for an infinite long particle prove favourable effect of the catalyst particle shaping on its activity in comparison with the cylindrical extrudates.