A Gibbs energy-driving force method for the optimal design of non-reactive and reactive distillation columns

Teresa Lopez-Arenas, Seyed Soheil Mansouri, Mauricio Sales-Cruz*, Rafiqul Gani, Eduardo S. Pérez-Cisneros

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

A simple Gibbs energy-driving force method for the design of non-reactive and reactive distillation columns has been developed. Based on the binary driving force concept and the equilibrium Gibbs energy computation, a systematic procedure for the design of non-reactive distillation columns (NRDC) and reactive distillation columns (RDC) is proposed. The design method exploits the connection between the driving force values and the equilibrium Gibbs energy to determine the number of stages, the optimal feed location, and the heat required at the top and bottom of the column and the minimum reflux ratio. The final design guarantees an optimal operation since maximum thermodynamic efficiency is achieved. The maximum thermodynamic efficiency criterion is equivalent to the minimum entropy condition required for a stable operation of the distillation columns. The method is applied for the design of two non-reactive systems: a) Benzene-Toluene ideal system and b) Ethanol-Water non-ideal system. A reactive distillation column considering the isomerization of n-butane in the presence of an inert compound is designed. The optimal thermal feed condition obtained through the maximum separation efficiency guarantees that the final designs obtained correspond to the minimum energy requirements for the design target of separation.
Original languageEnglish
JournalComputers & Chemical Engineering
Volume128
Pages (from-to)53-68
ISSN0098-1354
DOIs
Publication statusPublished - 2019

Keywords

  • Driving force
  • Gibbs energy
  • Distillation columns design
  • Reactive distillation design

Cite this

Lopez-Arenas, Teresa ; Mansouri, Seyed Soheil ; Sales-Cruz, Mauricio ; Gani, Rafiqul ; Pérez-Cisneros, Eduardo S. / A Gibbs energy-driving force method for the optimal design of non-reactive and reactive distillation columns. In: Computers & Chemical Engineering. 2019 ; Vol. 128. pp. 53-68.
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abstract = "A simple Gibbs energy-driving force method for the design of non-reactive and reactive distillation columns has been developed. Based on the binary driving force concept and the equilibrium Gibbs energy computation, a systematic procedure for the design of non-reactive distillation columns (NRDC) and reactive distillation columns (RDC) is proposed. The design method exploits the connection between the driving force values and the equilibrium Gibbs energy to determine the number of stages, the optimal feed location, and the heat required at the top and bottom of the column and the minimum reflux ratio. The final design guarantees an optimal operation since maximum thermodynamic efficiency is achieved. The maximum thermodynamic efficiency criterion is equivalent to the minimum entropy condition required for a stable operation of the distillation columns. The method is applied for the design of two non-reactive systems: a) Benzene-Toluene ideal system and b) Ethanol-Water non-ideal system. A reactive distillation column considering the isomerization of n-butane in the presence of an inert compound is designed. The optimal thermal feed condition obtained through the maximum separation efficiency guarantees that the final designs obtained correspond to the minimum energy requirements for the design target of separation.",
keywords = "Driving force, Gibbs energy, Distillation columns design, Reactive distillation design",
author = "Teresa Lopez-Arenas and Mansouri, {Seyed Soheil} and Mauricio Sales-Cruz and Rafiqul Gani and P{\'e}rez-Cisneros, {Eduardo S.}",
year = "2019",
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language = "English",
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A Gibbs energy-driving force method for the optimal design of non-reactive and reactive distillation columns. / Lopez-Arenas, Teresa; Mansouri, Seyed Soheil; Sales-Cruz, Mauricio; Gani, Rafiqul; Pérez-Cisneros, Eduardo S.

In: Computers & Chemical Engineering, Vol. 128, 2019, p. 53-68.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - A Gibbs energy-driving force method for the optimal design of non-reactive and reactive distillation columns

AU - Lopez-Arenas, Teresa

AU - Mansouri, Seyed Soheil

AU - Sales-Cruz, Mauricio

AU - Gani, Rafiqul

AU - Pérez-Cisneros, Eduardo S.

PY - 2019

Y1 - 2019

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