Herstellung von Tränkkatalysatoren als verfahrenstechnische Aufgabe

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Abstract
Production of impregnated catalysts as a chemical engineering task. Impregnated catalysts are the result of manufacturing processes involving a complex interplay of diffusion, viscous flow by capillary action, and solid state reactions. A knowledge of physical chemistry and drying technology permits systematic prediction of the necessary production steps in some detail. It is similarly possible to reduce the number of experiments needed to determine which variables are important and therefore have to be optimized. Thus it is at least possible to distribute the active components in the structure of the carrier in a manner that relates appropriately to the reaction requirements. This systematic prediction is limited in special cases where the active component of the catalyst changes its chemical nature during production. An example of this is when a catalyst requires an activation step.