A Model for the Off-line Optimization of Operation Parameters for the Extractive Distillation Process of Butadiene

Abstract A new model of the optimum conditions for the extractive distillation column of butadiene by using DMF as solvent has been proposed in this paper. The optimum decision variables (solvent/C_4, recycle gas/C_4, Reflux ratio, distillates) have been obtained by flexible tolerance algorithm under 27 different burdens of three key components in the feed C_4�� The three-dimensional Lagrange interpolation polynomials have been respectively correlated with each. optimum operation parameters. The softwares of optimum operation conditions for arbitrary proportions of three key components in the feed C_4 have been provided for production Comparing with the primary producing conditions the results calculated using optimal model can save energy consumption about 5��14 percent.

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Keywords�� butadiene extractive distillation optimization of parameters

Received 1993-01-15; published 1993-01-15

Cite this article:

Zhou Aiyue Li Zhihong Zhang Hua .A Model for the Off-line Optimization of Operation Parameters for the Extractive Distillation Process of Butadiene[J] Chemcial Industry and Engineering, 1993,V10(1): 7-15