Synthesis of Ternary Homogeneous Azeotropic Distillation Sequences: 2. Flowsheet Identification

https://doi.org/10.22146/ajche.49724

Sutijan Sutijan(1*), Megan Jobson(2), Robin Smith(3)

(1) 
(2) 
(3) 
(*) Corresponding Author

Abstract


This paper presents a systematic methodology for flowsheet generation for separating binary azeotropic mixtures using homogeneous azeotropic distillation. A new classification system for ternary mixtures using ‘standard distillation line maps’ defined in Sutijan et al. (2012) is employed. The new characterisation system is able to link candidate entrainers to flowsheet structures which can facilitate the separation. The sequences considered include pressure-swing distillation, two and three-column flowsheets with or without boundary crossing and the use of single and double-feed columns. For a given ternary mixture, suitable flowsheet structures that can facilitate the separation can be automatically identified. The method is illustrated using examples.

Keywords


Azeotropic distillation, Entrainer selection, Residue curve map, Distillation line map, Distillation sequence, Flowsheet structures

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References

1. Castillo, F.J.L., (1997), Synthesis of Homogeneous Azeotropic Distillation Sequences, PhD Thesis, UMIST, Manchester.
2. Castillo, F.J.L., Thong, D.Y-C., Towler, G.P., (1998a), Homogeneous Azeotropic Distillation: 1. Design Procedure for Single-Feed Columns at Non-total Reflux, Ind. Eng. Chem. Res.,37 (3), pp. 987-997.
3. Doherty, M.F. and Caldarola, G.A., (1985), Design and synthesis of homogeneous azeotropic distillations. 3. The sequencing of columns for azeotropic and extractive distillation, Ind. Eng. Chem. Fundam., 24, pp. 474- 485.
4. Doherty, M.F. and Perkins, J.D., (1979), 60 Synthesis of Ternary Homogeneous Azeotropic Distillation Sequences: 2. Flowsheet Identification On the dynamics of distillation processes-III: The topological structure of ternary residue curve maps, Chem. Eng. Sci., 34, pp. 1401-1414.

5. Foucher, E.R.; Doherty, M.F. and Malone, M.F., (1991), Automatic screening of entrainers for homogeneous azeotropic distillation, Ind. Eng. Chem. Res., 30, pp. 760-772.
6. King, J.C., (1980), Separation Processes, 2 nd ed., McGraw Hill Inc., New York.
7. Knapp, J.P. and Doherty, M.F., (1992), A new pressure-swing distillation process
for separating homogeneous azeotropic distillation, Ind. Eng. Chem. Res., 31, pp. 346-357.
8. Laroche, L., Bekiaris, N., Andersen, H.W. and Morari, M., (1991), Homogeneous
azeotropic distillation: Comparing entrainers, Can. J. Chem. Eng., 69, pp.
1302-1318
9. Laroche, L., Bekiaris, N., Andersen, H.W. and Morari, M., (1992), The curious behaviour of homogeneous azeotrope distillation: Implications for entrainer selection, AIChE J., 38, pp. 1309-1328.
10. Levy, S.G.,Van Dongen, D. B., Doherty, M. F., (1985), Design and Synthesis of Homogeneous Azeotropic Distillation: 2. Minimum Reflux Calculations for Nonideal and Azeotropic Columns, Ind. Eng. Chem. Fund.,34, pp. 463
11. Rooks, R.E., Julka, V., Doherty, M.F. and Malone, M.F., (1998), Structure of Distillation Regions for Multicomponent Azeotropic Mixtures, AIChE J., 44 (6), pp. 1382-1391.
12. Safrit, B. T. and Westerberg, A.W., (1997), Algorithm for generating the distillation regions for multicomponent azeotropic mixtures, Ind. Eng. Chem. Res., 36, pp. 1827-1840.

13. Smith, R., (1995), Chemical Process Design, McGraw-Hill, Inc., New York.
14. Stichlmair, J.G. and Fair, J., (1998), Distillation: Principles and Practices (??), Wiley-VCH, New York.
15. Stichlmair, J.G., Fair, J.R. and Bravo, J.L., (1989), Separation of azeotropic mixtures via enhanced distillation, Chem. Eng. Prog., 1989, 85 (1), pp. 63- 69
16. Stichlmair, J., Herguijuela, J.R, (1992), Separation regions and processes of zeotropic and azeotropic ternary distillation, AIChE J., 38, pp. 1523-1535.
17. Sutijan, Jobson, M., and Smith, R., (2012), Synthesis of Ternary Homogeneous Azeotropic Distillation Sequences: 1. Entrainer Selection, AJChE, 12 (1), pp. 20-33
18. Thong, D. Y-C., (2000a), Multicomponent Azeotropic Distillation Design, PhD
Thesis, UMIST, Manchester.
19. Thong, D. Y-C., (2000b), Research update on two-feed distillation, unpublished paper, UMIST, Manchester, UK.
20. Wahnschafft, O.M.; Koehler, J.W., Blass, E. And Westerberg, A.W., (1992), The product composition regions of single- feed azeotropic distillation columns, Ind. Eng. Chem. Res., 31, pp. 2345-2362.

21. Wahnschafft, O.M. And Westerberg, A.W., (1992), The product composition regions of azeotropic distillation columns. 2. Separability in two-feed columns and entrainer selection, Ind. Eng. Chem. Res., 32, pp. 1108-1120.
22. Widagdo, S. and Seider, W.D., (1996), Azeotropic distillation, AIChE J., 42, pp. 96-130.



DOI: https://doi.org/10.22146/ajche.49724

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ASEAN Journal of Chemical Engineering  (print ISSN 1655-4418; online ISSN 2655-5409) is published by Chemical Engineering Department, Faculty of Engineering, Universitas Gadjah Mada.