Influence of the unsteady state operations on yield and selectivity of a three phase catalytic reactor

Abstract

The unsteady state regime of a three phase catalytic reactor in upflow is studied, where the reaction of hydrogenation of a dinitrile (dissolved in a solvent) to a diamino compound is carried out. The kinetic data of the reaction are taken from previous experimental findings; the reactor model keeps into account the accumulation of the components both in the liquid inside the pores and on the internal surface of the catalyst. By using asymmetric oscillations or pulsations at very low frequencies of the inlet concentration of the dinitrile, a significative improvement of yield and selectivity can be achieved.