Design and operation of batch extractive distillation with two reboilers

Abstract

Abstract: This paper proposes a modified operation mode of batch extractive distillation with two reboilers. The separation of ethanol and water using as ethylene glycol is well done to validate the feasibility of this mode. The pilot-plant experimental data under the identical operational conditions between the regular mode and the modified mode are in particular discussed. The studied results prove more practical advantages of the modified mode over the regular mode such as easier operation control, more flexibility and higher separation efficiency etc. So it supplies certain guidance for the industrial application of batch extractive distillation process.

Key words: batch distillation, extractive distillation, two reboilers, solvent recovery

摘要： This paper proposes a modified operation mode of batch extractive distillation with two reboilers. The separation of ethanol and water using as ethylene glycol is well done to validate the feasibility of this mode. The pilot-plant experimental data under the identical operational conditions between the regular mode and the modified mode are in particular discussed. The studied results prove more practical advantages of the modified mode over the regular mode such as easier operation control, more flexibility and higher separation efficiency etc. So it supplies certain guidance for the industrial application of batch extractive distillation process.

关键词: batch distillation;extractive distillation;two reboilers;solvent recovery

HUAChao,LIXingang,XUShimin, BAIPeng. Design and operation of batch extractive distillation with two reboilers[J]. .

华超, 李鑫钢, 徐世民, 白鹏. 双再沸器间歇萃取精馏的过程研究[J]. CIESC Journal.

References

1    Berg, L., Yeh, A., “The unusual behavior of extractive distillation-reversing the volatility of the acetone-isopropyl ether system”, AIChE J., 31(3), 504—506(1985).
2    Safrit, B.T., Westerberg A.W., Diwekar, U., “Extending continuous conventional and extractive distillation feasi-bility insights to batch distillation”, Ind. Eng. Chem. Res., 34(10), 3257—3264(1995).
3    Lang, P., Modla, G., Benadda, B., Lelkes, Z., “Ho-moazeotropic distillation of maximum azeotropes in a batch rectifier with continuous entrainer feeding (Ⅰ) Feasibility studies”, Comput. Chem. Eng., 24,  1665—1671(2000).
4    Yatim, H., Moszkowicz, P., “Dynamic simulation of a batch extractive distillation process”, Comput. Chem. Eng, 17(1), s57—s62(1992).
5    Lang, P., Modla, G., Lelkes, Z., “Homoazeotropic distil-lation of maximum azeotropes in a batch rectifier with continuous entrainer feeding (Ⅱ) Rigorous simulation re-sults”, Comput. Chem. Eng., 24(2-7),1429—1435(2000).
6    Lang, P., Yatim, H., Moszkowicz, P., Otterbein, M., “Batch extractive distillation under constant reflux ratio”, Comput. Chem. Eng, 18(11), 1057—1069(1994).
7    Lang, P., Yatim, H., Moszkowicz, P., Bnadda, B., Otter-bein, M., “Different operational policies for the batch ex-tractive distillation”, Comput. Chem. Eng., 19(s1), 645—650(1995).
8    Lelkes, Z., Lang, P., Moszkowicz, P., Bnadda, B., Otter-bein, M., “Batch extractive distillation: The process and the operational policies”, Chem. Eng. Sci., 53(7), 1331—1348(1998).
9    Lelkes, Z., Lang, P., “Feasibility of extractive distillation in a batch rectifier”, AICHE J, 44(4), 810—822(1998).
10    Cui, X.B., Yang, Z.C., “Batch extractive distillation in a column with a middle vessle”, Chin. J. Chem. Eng., 10(5), 529—534(2002).
11    Safrit, B.T., Westerberg, A.W., “Improved operational policies for batch extractive distillation”, Ind. Eng. Chem. Res., 36(2), 436—443(1997).
12    Dussel, R., Stichlmair, J., “Separation of azeotropic mix-tures by batch distillation using an entrainer”, Compters. Chem Engng, 19(s1), 113—118(1995).
13    Zhang, Z.G., Xu, S.M., Li, X.G., Zhang, W.J., “Advances in batch extractive distillation”, Chem. Ind. and Eng. Progr., 23(9), 933—937(2004). (in Chinese).
14    Safrit, B.T., Westerberg, A.W., “Improved operational policies for batch extractive distillation”, Ind. Eng. Chem. Res., 36(2), 436—443(1997).
15    Hu, H., Wu, H.X., Xu, S.M, Li, X.G., “New technology of recovering absolute ethanol by batch extractive distil-lation”, Modern Chemical Industry, 26(6), 53—57(2006). (in Chinese)
16    Oppenheimer, O.,   E., “Comparative energy consumption in batch and continuous distillation”, Com-put. Chem. Eng, 21(s1), 529—534(1997).

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Design and operation of batch extractive distillation with two reboilers

双再沸器间歇萃取精馏的过程研究

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