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Thermodynamically equivalent distillation schemes to the Petlyuk column for ternary mixtures

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  • Hernández, Salvador
  • Gabriel Segovia-Hernández, Juan
  • Rico-Ramírez, Vicente

Abstract

Thermally coupled distillation sequences for ternary separations have been shown to provide significant energy savings with respect to the conventional direct and indirect distillation sequences. Although the Petlyuk column is generally more efficient than the other thermally coupled schemes, its structure creates potential operating problems because of the bi-directional vapour interconnecting streams. In this paper, second law calculations were performed for the Petlyuk column and six alternative distillation schemes that show unidirectional flows; in principle, such alternative configurations are expected to present better operational properties than those of the original Petlyuk column. The results indicate that the proposed distillation arrangements have values of thermodynamic efficiency very close to that of the Petlyuk column. This result is important because let us establish that the alternative distillation sequences: (i) are thermodynamically equivalent to the Petlyuk column, (ii) could be more easily implemented in practice, and (iii) also achieve significant energy savings.

Suggested Citation

  • Hernández, Salvador & Gabriel Segovia-Hernández, Juan & Rico-Ramírez, Vicente, 2006. "Thermodynamically equivalent distillation schemes to the Petlyuk column for ternary mixtures," Energy, Elsevier, vol. 31(12), pages 2176-2183.
    • Handle: RePEc:eee:energy:v:31:y:2006:i:12:p:2176-2183
    DOI: 10.1016/j.energy.2005.10.007
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    References listed on IDEAS

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    1. Rivero, Ricardo, 2001. "Exergy simulation and optimization of adiabatic and diabatic binary distillation," Energy, Elsevier, vol. 26(6), pages 561-593.
    2. Rivero, R. & Garcia, M. & Urquiza, J., 2004. "Simulation, exergy analysis and application of diabatic distillation to a tertiary amyl methyl ether production unit of a crude oil refinery," Energy, Elsevier, vol. 29(3), pages 467-489.
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    Cited by:

    1. Cossio-Vargas, E. & Hernandez, S. & Segovia-Hernandez, J.G. & Cano-Rodriguez, M.I., 2011. "Simulation study of the production of biodiesel using feedstock mixtures of fatty acids in complex reactive distillation columns," Energy, Elsevier, vol. 36(11), pages 6289-6297.
    2. Maysam Safe & Seyed Khazraee & Payam Setoodeh & Abdolhosein Jahanmiri, 2013. "Model reduction and optimization of a reactive dividing wall batch distillation column inspired by response surface methodology and differential evolution," Mathematical and Computer Modelling of Dynamical Systems, Taylor & Francis Journals, vol. 19(1), pages 29-50.

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