Diffusion and kinetics of reaction over bidispersive reforming catalyst

The objective of the study was to construct a mathematical model for optimizing the porous structure of the reforming catalyst. Using a layered model of the catalyst grain and the kinetic scheme adopted for the process, equations were derived to describe the mass transport in the catalyst grain under conditions of reforming. Particular consideration was given to the problem of how the parameters of the porous structure affected the efficiency of the process. Substantiated was the favourable influence of an appropriate macropore (transport pore) proportion in the catalyst grain on the course of the process. The optimum quantitative ratio of wide to narrow pores in the catalyst grain was established for determined pore radii.