The present paper continues the series of articles devoted to the oscillatory behaviour in gas-liquid/liquid reactions on a porous catalyst. Based on the theoretical predictions given earlier, some phenomena (e.g. pressure pulsations in pores caused by the liquid oscillations, leading in some cases to the catalyst destruction) and some approaches to the reaction enhancement (e.g. the preparation of special pores leading to the liquid pumping through the catalyst particle in the demanded direction) are discussed in detail. Several deductive, illustrative experiments demonstrating the oscillatory behaviour and some possible investigation methods have been described. (c) 2005 Elsevier B.V. All rights reserved.