A simulator for internally heat integrated distillation columns (HIDiC) with a rate-based model was developed. Using a mass transfer correlation for structured packings and the Chilton-Colburn analogy, heat transfer coefficients for the liquid phase were obtained. Based on the simulation results, the overall heat transfer coefficient U for the internal heat exchange in the HIDiC was estimated. Since the overall heat transfer coefficient obtained was similar to that obtained from the small experimental plant, the simulation with the rate-based model is useful to predict the overall heat transfer coefficient with the mass transfer correlation.
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