Simulation of Anhydrous Bioethanol Production Process Using Efficiency Correlations for Conventional and Extractive Distillation
نویسندگان
چکیده
In this work, simulations of the complete separation process in anhydrous bioethanol production were carried out in Aspen Plus. This process comprises distillation and rectification columns as well as an extractive column. Equilibrium stage model and Barros & Wolf efficiency correlations were used to perform the calculations. Efficiency profiles were obtained for all columns showing that efficiency values significantly vary along the columns. Influence of the introduction of efficiencies was evaluated through comparison with equilibrium stage model (ideal process). Results pointed out that energy requirements are not significantly higher when efficiencies are taken into account; however stream results and temperature profiles were quite different from each other. This reveals that is necessary to consider efficiency changes along the column if reliable predictions are to be made.
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