Determination of the Virtual Rate Constant of a Catalytic Isomerization Process

Abstract

In connection with catalytic reactions, it is the overall reaction rate that is defined in practice. However, the processes proceed through a number of steps an accordingly it is more preferable to consider each individual partial process. An equation has been derived for the determination of the virtual rate constant of the reaction occurring at the internal surface of the catalyst particles which also contains the figures of mass transfer (external and pore diffusion). A possibility is hereby given to interact at the most advantageous point, in order to speed up to overall reaction. The overall reaction rate is, at best, equal to that of the surface reaction (if the diffusion hindrance is eliminated) and consequently the latter is preferably determined). A mathematical estimation has also been derived for the determination of the mass transfer occurring in the boundary layer around the catalyst particles.