Development of Analytical Models for a Reactive Distillation Process with a Rate-Based Model

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In order to develop the model ft reactive distillation process the following research topics have been done.1. Development of Simulation Program for Analyzing Reactive Distillation Column with Rate-Based ModelThe program consists of segmentwise calculation by solving material and heat balance equations with mass and heat transfer equations at the vapor-liquid interface. Reaction term is included in the material balance equation for the bulk liquid.2. Improvement of Mass Transfer Coefficient CorrelationExperimental data using structured packing of surface area, 250 m2/m3 and 350 m2/m3 are used to correlate the mass transfer coefficient and effective interface area. The equations proposed by Bravo, et. al. for mass transfer coefficient and by Henriques de Brito, et. al. for effective interfacial area are employed to improve their accuracy. The optimized parameters show the importance of estimating the effective interfacial area.3. Comparison of Simulation Results with Experiments using Oldershaw ColumnAn Oldershaw column with seven sieve trays is used for total reflux reactive distillation experiments. The simulation program is developed based on transient mass and heat balance equations and those equations are numerically integrated to obtain distillation curves of batch reactive distillation. It shows the necessity of improving rate equations.4.Study on Reaction Kinetics of Ethyl acetate SynthesisA reaction kinetic of non-catalytic esterification is determined from the batch reactor experiments. Using the determined rate equation the simulation predicts the liquid composition change of the still with better accuracy.