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Synthesis of separation flowsheets for multicomponent azeotropic mixtures on the basis of the distillation theory. Presynthesis: prediction of feasible product compositions

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Abstract

A general approach based on the theory of distillation-trajectory tearing off is adopted in the synthesis of optimal separation flowsheets for multicomponent azeotropic mixtures. The first stage of the synthesis—presynthesis—is considered, at which feasible product compositions are predicted for the separation in a simple column, a two-feed column, and a column with a decanter.

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Abbreviations

F, D, B, E :

feed, overhead-product, bottom-product, and entrainer fluxes, respectively

K l :

phase equilibrium coefficient of the ith component

N :

nodal point of a trajectory bundle

n :

number of components

R, S :

reflux and reboil ratios, respectively

S :

saddle point of a trajectory bundle

V, L :

vapor and liquid fluxes, respectively

x i y 1 :

concentration of the ith component in the liquid and vapor phases, respectively

rev:

reversible distillation

B :

bottom product

D :

overhead product

E :

entrainer

i = 1, ...n,j = 1, ...n3 :

component no

r :

top section

s :

bottom section

t :

tear-off point

-:

unstable node

+:

stable node

References

  1. Petlyuk, F.B., Kievskii, V.Ya., and Serafimov, L.A., Prediction of the Compositions of Polyazeotropic-Distillation Products,Teor. Osn. Khim. Tekhnol., 1979, vol. 13, no. 5, p. 643.

    CAS  Google Scholar 

  2. Safrit, B.T. and Westerberg, A.W., Algorithm for Generating the Distillation Regions for Azeotropic Multicomponent Mixtures,Ind. Eng. Chem. Res., 1997, vol. 36, no. 3, p. 1827.

    Article  CAS  Google Scholar 

  3. Wahnschaft, O.M., Koehler, J.W., Blass, E., and Westerberg, A. W., The Product Composition Regions of SingleFeed Azeotropic Distillation Columns,Ind. Eng. Chem. Res., 1992, vol. 31, no. 10, p. 2345.

    Article  Google Scholar 

  4. Wahnschaft, O.M. and Westerberg, A.W., The Product Composition Regions of Azeotropic Distillation Columns. 2. Separability in Two-Feed Columns and Entrainer Selection,Ind. Eng. Chem. Res., 1993, vol. 32, no. 6, p. 1108.

    Article  Google Scholar 

  5. Petlyuk, F.B., Thermodynamically Reversible Distillation of Multicomponent Azeotropic Mixtures,Teor. Osn. Khim. Tekhnol., 1978, vol. 12, no. 3, p. 329.

    Google Scholar 

  6. Petlyuk, F.B., Serafimov, L.A., Avet’yan, V.S., and Vinogradova, E.I., Reversible-Distillation Trajectories at Total Withdrawal of One Component in Each Column Section,Teor. Osn. Khim. Tekhnol, 1981, vol. 15, no. 3, p. 323.

    CAS  Google Scholar 

  7. Petlyuk, F.B., Vinogradova, E.I., and Serafimov, L.A., Feasible Compositions of the Products of Ternary Azeotropic Distillation at Minimum Reflux,Teor. Osn. Khim. Tekhnol., 1984, vol. 18, no. 2, p. 147.

    CAS  Google Scholar 

  8. Petlyuk, F.B., Simple Methods for Predicting Feasible Sharp Separations of Azeotropic Mixtures,Teor. Osn. Khim. Tekhnol., 1998, vol. 32, no. 3, p. 288.

    Google Scholar 

  9. Petlyuk, F.B. and Danilov, R.Yu., Calculation of Distillation Trajectories at Minimum Reflux for Ternary Azeotropic Mixtures,Teor. Osn. Khim. Tekhnol., 1998, vol. 32, no. 6, p. 604.

    Google Scholar 

  10. Petlyuk, F.B. and Danilov, R.Yu., Sharp Distillation of Azeotropic Mixtures in a Two-Feed Column,Teor. Osn. Khim. Tekhnol., 1999, vol. 33, no. 3, p. 259.

    Google Scholar 

  11. Petlyuk, F.B. and Danilov, R.Yu., Feasible Separation Variants and Minimum-Reflux Calculations for Multicomponent Azeotropic Mixtures,Teor. Osn. Khim. Tekhnol., 1999, vol. 33, no. 6, p. 629.

    Google Scholar 

  12. Petlyuk, F.B., Distillation Diagrams for Ternary Azeotropic Mixtures,Teor. Osn. Khim. Tekhnol., 1986, vol. 20, no. 3, p. 299.

    CAS  Google Scholar 

  13. Petlyuk, F.B., Tsaranova, D.A., Isaev, B.A., and Serafimov, L.A., Presynthesis and Feasibility Analysis of Separation Flowsheets for Azeotropic Mixtures,Teor. Osn. Khim. Tekhnol., 1985, vol. 19, no. 4, p. 514.

    CAS  Google Scholar 

  14. Polyakova, E.V., Pavlenko, T.G., Kulabukhova, N.P.,et al., Heteroazeotropic Distillation, inFiziko-khimicheskie osnovy rektifikatsii (Physicochemical Foundations of Distillation), Moscow: Moscow Inst. Khim. Mashinostroeniya, 1977, pp. 160, 171.

    Google Scholar 

  15. Wahnshaft, O.M., Advanced Distillation Synthesis Techniques for Nonideal Mixtures Are Making Headway in Industrial Applications,Distillation and Absorption Conf., Maastricht, 1997, p. 613.

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Petlyuk, F.B., Danilov, R.Y. Synthesis of separation flowsheets for multicomponent azeotropic mixtures on the basis of the distillation theory. Presynthesis: prediction of feasible product compositions. Theor Found Chem Eng 34, 236–254 (2000). https://doi.org/10.1007/BF02755972

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