[1] A. Aggarwal, C. A. Floudas (1990) ''Synthesis of general distillation sequences– nonsharp separations’’, Comp. & Chem. Eng., 14, 631-653
[2] R. Nath (1977) Studies in the Synthesis of Separation Processes, PhD thesis, University of Houston, Texas.
[3] M. Muraki, T. Hayakawa (1984) ''Separation processes synthesis for multicomponent products'', J. Chem. Eng. Japan. 17(5), 533-538.
[4] S. H Cheng, Y. A. Liu (1988) ''Studies in chemical process design and synthesis: 8. A simple heuristic method for systematic synthesis of initial sequences for sloppy multicomponent separations'', l&ECRes., 27 (12), 2304–2322
[5] M. Muraki, T. Hayakawa (1987) ''Multi component separation process synthesis with separation sharpness'', J. Chem. Eng. Japan., 20, 195-198.
[6] M. Muraki, T. Hayakawa (1988) "Synthesis of a multicomponent multiproduct separation process with nonsharp separators", Chem. Eng. Sci., 43(2):259-268.
[7] R. R. Wehe, A. W. Westerberg (1990) "A bounding procedure for the minimum number of columns in nonsharp distillation sequences", Chem. Eng. Sci., 45(1): 1-11.
[8] A. Aggarwal, C. A. Floudas (1992) "Synthesis of heat integrated nonsharp distillation sequences", Comp. & Chem. Eng., 16, 89-108.
[9] Z. Liu, X. Xu (1995) ''Heuristic procedure for the synthesis of distillation sequences with multicomponent products'', Chemical Engineering Science, 50, 1997-2004.
[10] Z. Hu, B. Chen, X. He (1993) ''Heuristic synthesis for multicomponent products with simple and sharp separators'', Chemical Engineering Science, 17, 379-397.
[11] S. B.Hsiao, C. M.Sheppard (1996) ''Algorithmic synthesis of general non-sharp simple distillation column sequences'', Chemical Engineering Communications, 140, 1–19.
[12] E. McCarthy, E. S. Flaga, J. W. Ponton (1998) ''An automated procedure for multicomponent Product Separation Synthesis'', Computers chem. Engng., 22, 77-88.
[13] Z. Kova ´cs, Z. Ercsey, F. Friedler, L. T. Fan (2000) "Separation-network synthesis: global optimum through rigorous super-structure", Computers and Chemical Engineering, 24, 1881–1900.
[14] X. H.Wang, Y. G. Li (2008) "Synthesis of Multicomponent Products Separation Sequences via Stochastic GP Method'', Ind. Eng. Chem. Res., 47, 8815–8822.
[15] F. Henrich, C. Bouvy, C. Kausch, K. Lucas, M. Preu, G. Rudolph, P. Roosen (2008) "Economic optimization of non-sharp separation sequences by means of evolutionary algorithms", Computers and Chemical Engineering, 32, 1411–1432.
[16] J. Ivakpour, N. Kasiri, (2009) "Synthesis of Distillation Column Sequences for Nonsharp Separations", Ind. Eng. Chem. Res., 48, 8635–8649.
[17] C. A. Floudas (1995) Nonlinear and mixed integer optimization, Oxford University press, New York.
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