Thermodynamic Insights on the Feasibility of Homogeneous Batch Extractive Distillation. 4. Azeotropic Mixtures with Intermediate Boiling Entrainer - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Industrial and engineering chemistry research Année : 2012

Thermodynamic Insights on the Feasibility of Homogeneous Batch Extractive Distillation. 4. Azeotropic Mixtures with Intermediate Boiling Entrainer

Résumé

This paper shows how knowledge of the univolatility and nidistribution line location and residue curve analysis help to assess the feasibility of batch extractive rectifying or stripping distillation of azeotropic mixtures by using an intermediate boiling entrainer. We consider five minimum boiling (minT) azeotropic mixtures AB with entrainer E, namely, acetone−heptane with benzene, methanol−toluene with triethylamine, methyl acetate−cyclohexane with carbon tetrachloride, dichloromethane−ethanol with acetone, and ethyl acetate−heptane with benzene; and one maximum boiling (maxT) azeotropic mixture, namely, chloroform−ethyl acetate with either 2-chlorobutane, isobutylchloride, bromopropane, or bromochloromethane. All ternary diagrams A−B−E belong to the 1.0-1b class, for which all three possible univolatility, !AB, !BE, and !AE, and unidistribution lines, KA, KB, and KE can exist. With application of the general feasibility criterion of Rodriguez-Donis et al. (Ind. Eng. Chem. Res. 2009, 48 (7), 3544−3559), both azeotropic components, A and B, accomplish the criterion, and they can be recovered, A in an extractive rectifier and B in an extractive stripper. The process efficiency of each alternative depends strongly on the location of the !AB univolatility line interception with the triangle edge, and also depends on the !BE (!AE) in the minT (maxT) case and of the unidistribution line KE closeness to the (E−B) (A−E) edge. Besides, choice of the rectification of A instead of the stripping of B is set by the ratio of !AE/!BE, the ratio of relative volatility variation of the binary mixtures between A or B and E.
Fichier principal
Vignette du fichier
Rodriguez-Donis_6244.pdf (1.3 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-03468961 , version 1 (07-12-2021)

Identifiants

Citer

Ivonne Rodríguez-Donis, Vincent Gerbaud, Xavier Joulia. Thermodynamic Insights on the Feasibility of Homogeneous Batch Extractive Distillation. 4. Azeotropic Mixtures with Intermediate Boiling Entrainer. Industrial and engineering chemistry research, 2012, 51 (18), pp.6489-6501. ⟨10.1021/ie2019432⟩. ⟨hal-03468961⟩
22 Consultations
98 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More