Operation Condition Optimization of Butadiene Extraction Distillation Column

A model of the optimum conditions for extractive distillation column of butadiene based on Aspen Plus proposed in this paper.The optimum decision variables,solvent/C4 ratio,is obtained by optimizing the model.By using artificial neural networks,the optimum solvent/C4 ratios for arbitrary proportions of three key components in the feed C4 are provided for production.Compared with the primary producing conditions the results calculated using optimal model indicate that the new method can save energy consumption and increase throughput.