International Sugar Journal

Linear growth rate based adaptive batch crystallization control [Full subscriber]

Abstract Supersaturation based batch pan control seeks to control the growth rate of the crystals via control of sucrose concentration in the mother liquor within the metastable zone for orderly crystal growth. However, in practice, this approach results in a rather complex computational and programming problem. In order to accurately measure and control supersaturation, a number of reliable, representative and relatively accurate process inputs are required. Among the more important inputs are the purity and temperature of the boiling mass as well as the concentration of the mother liquor. The ultimate goal of the batch crystallization process is to manage…

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