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Externally heat-integrated double distillation column (EHIDDiC) / Kejin Huang in Industrial & engineering chemistry research, Vol. 49 N° 3 (Fevrier 2010)

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 49 N° 3 (Fevrier 2010) . - pp. 1333–1350 Titre : Externally heat-integrated double distillation column (EHIDDiC) : basic concept and general characteristics Type de document : texte imprimé Auteurs : Kejin Huang, Auteur ; Wei Liu, Auteur ; Jiangpeng Ma, Auteur Année de publication : 2010 Article en page(s) : pp. 1333–1350 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Externally--Heat-Integrated--Double  Distillation--Column  (EHIDDi--Basic  Concept--General  Characteristics Résumé : In terms of the thermodynamic characteristics of simple distillation columns, a novel schematic of an externally heat-integrated double distillation column (EHIDDiC) is proposed and studied in this work. It consists of high-pressure and low-pressure distillation columns, with external heat integration between the whole rectifying section of the former and the whole stripping section of the latter. In comparison with conventional distillation systems (i.e., direct and indirect separation sequences), the EHIDDiC was found to require relatively small capital investment and low operating costs. It can even outperform conventional distillation systems with the condenser/reboiler type of heat integration under some favorable operating conditions. In terms of the separation of a ternary ideal mixture containing hypothetical components A, B, and C, the EHIDDiC was evaluated through intensive comparisons with its conventional counterparts. Sensitivity analysis was also conducted with respect to some relevant physical properties and design parameters, including the relative volatilities, feed composition, external heat-transfer area per stage, product specifications, and utility costs. It was confirmed that the EHIDDiC can be advantageous over conventional distillation systems with and without condenser/reboiler-type heat integration, and the results obtained reflect the salient characteristics of the EHIDDiC. ISSN : 0888-5885 [article] Externally heat-integrated double distillation column (EHIDDiC) : basic concept and general characteristics [texte imprimé] / Kejin Huang, Auteur ; Wei Liu, Auteur ; Jiangpeng Ma, Auteur . - 2010 . - pp. 1333–1350. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 3 (Fevrier 2010) . - pp. 1333–1350 Mots-clés : Externally--Heat-Integrated--Double  Distillation--Column  (EHIDDi--Basic  Concept--General  Characteristics Résumé : In terms of the thermodynamic characteristics of simple distillation columns, a novel schematic of an externally heat-integrated double distillation column (EHIDDiC) is proposed and studied in this work. It consists of high-pressure and low-pressure distillation columns, with external heat integration between the whole rectifying section of the former and the whole stripping section of the latter. In comparison with conventional distillation systems (i.e., direct and indirect separation sequences), the EHIDDiC was found to require relatively small capital investment and low operating costs. It can even outperform conventional distillation systems with the condenser/reboiler type of heat integration under some favorable operating conditions. In terms of the separation of a ternary ideal mixture containing hypothetical components A, B, and C, the EHIDDiC was evaluated through intensive comparisons with its conventional counterparts. Sensitivity analysis was also conducted with respect to some relevant physical properties and design parameters, including the relative volatilities, feed composition, external heat-transfer area per stage, product specifications, and utility costs. It was confirmed that the EHIDDiC can be advantageous over conventional distillation systems with and without condenser/reboiler-type heat integration, and the results obtained reflect the salient characteristics of the EHIDDiC. ISSN : 0888-5885