The comparisons of experimental and predicted data in Figs. 17 and 18 show good agreement. Fig. 17 shows again the relationship between the disk speed and conversion for three different gap sizes, comparing experimental values with the predictions of the modeling. The conversion values are relatively insensitive to disk speed rotational speed and the modeling also confirms this. The doubling of disk speed in the range 15–30 rps appears not to enhance kinetics and this would be explained by a relatively small increase in shear rate. In contrast, the effect of reducing the inter-disk space has a much more marked influence upon the conversion. Fig. 18 presents own original simulation software based on the finite element method. The algorithm proves to be very effective and can be performed using a PC class computer as the computational cost (depending on the mesh size) never exceeded 30min for the cases presented here. We claimthat the model is in close agreementwith the experimental data and that it explains the phenomena observed experimentally.