Abstract

Electrical capacitance tomography (ECT) is an electrical imaging modality that can be used to estimate electrical properties inside different processing vessels. The presentation will describe how ECT has been applied in monitoring of two processes that are commonly used in pharmaceutical industry. The first one is calledhigh-shear granulation, in which pharmaceutical powders are built-up into granules with the help of high-shear mixer and binder liquid. The second is called fluidized-bed drying, in which wet granules are dried with the help of a heated stream of air. In the case studies, monitoring signals that describe the progress and the characteristics of these processes are generated from the ECT images.