Hydrodynamic aspects of the monolith loop reactor

In this paper, the so-called monolith loop reactor is introduced. In this r eactor, liquid is circulated over a monolith catalyst using a pump while ga s-phase circulation is obtained by the pressure difference across the react or. A model is derived to calculate the liquid hold-up inside the monolith as a function of the liquid circulation flow rate. Gas-liquid mass-transfer measurements in a monolith are compared to a model for capillaries. A comb ination of the hydrodynamic and the mass transfer models leads to predicted k(L)a values as a function of the power input. The performance of the mono lith loop reactor is compared to bubble columns and stirred-tank reactors. (C) 2001 Elsevier Science Ltd. All rights reserved.