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Extended ponchon−savarit method for graphically analyzing and designing lnternally heat-lntegrated distillation columns / Tsung-Jen Ho in Industrial & engineering chemistry research, Vol. 49 N° 1 (Janvier 2010) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 49 N° 1 (Janvier 2010) . - pp. 350–358 Titre : Extended ponchon−savarit method for graphically analyzing and designing lnternally heat-lntegrated distillation columns Type de document : texte imprimé Auteurs : Tsung-Jen Ho, Auteur ; Chi-Tsung Huang, Auteur ; Liang-Sun Lee, Auteur Année de publication : 2010 Article en page(s) : pp. 350–358 Langues : Anglais (eng) Mots-clés : Extended--Ponchon−Savarit--Method--Graphically--Analyzing--Designing--Internally  Heat-Integrated--Distillation  Columns Résumé : The heat-integrated distillation column, generally called HIDiC, applies the principle of internal heat integration between the rectifying section and the stripping section of a distillation column by increasing the temperature of the rectifying section with a compressor. In this work, a theoretical stage-to-stage study of a HIDiC based on the Ponchon−Savarit method is performed. Several HIDiC design variables, such as the number of theoretical stages, reboiler (or preheater) duty, minimum overall internal heat-transfer rate, and configuration, can easily be interpreted in the Ponchon−Savarit (Hxy) diagram. Such an approach brings new insights into and better understanding of the features of HIDiC. A preliminary (or shortcut) HIDiC design procedure using Hxy diagrams is also proposed. The obvious advantages are that the proposed method allows the direct design of a HIDiC and avoids trial-and-error design using a commercial simulator. In addition, the proposed graphical method can foresee possible pinch points before requiring use of a rigorous simulator. Furthermore, the proposed graphical estimation of internal stages of a HIDiC is applied to a binary methanol−water system and compared to the rigorous simulation results obtained using Aspen Plus. Moreover, the McCabe−Thiele diagram of the HIDiC is also drawn using the extended Ponchon−Savarit method and presented in this study. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie9005468 [article] Extended ponchon−savarit method for graphically analyzing and designing lnternally heat-lntegrated distillation columns [texte imprimé] / Tsung-Jen Ho, Auteur ; Chi-Tsung Huang, Auteur ; Liang-Sun Lee, Auteur . - 2010 . - pp. 350–358. Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 1 (Janvier 2010) . - pp. 350–358 Mots-clés : Extended--Ponchon−Savarit--Method--Graphically--Analyzing--Designing--Internally  Heat-Integrated--Distillation  Columns Résumé : The heat-integrated distillation column, generally called HIDiC, applies the principle of internal heat integration between the rectifying section and the stripping section of a distillation column by increasing the temperature of the rectifying section with a compressor. In this work, a theoretical stage-to-stage study of a HIDiC based on the Ponchon−Savarit method is performed. Several HIDiC design variables, such as the number of theoretical stages, reboiler (or preheater) duty, minimum overall internal heat-transfer rate, and configuration, can easily be interpreted in the Ponchon−Savarit (Hxy) diagram. Such an approach brings new insights into and better understanding of the features of HIDiC. A preliminary (or shortcut) HIDiC design procedure using Hxy diagrams is also proposed. The obvious advantages are that the proposed method allows the direct design of a HIDiC and avoids trial-and-error design using a commercial simulator. In addition, the proposed graphical method can foresee possible pinch points before requiring use of a rigorous simulator. Furthermore, the proposed graphical estimation of internal stages of a HIDiC is applied to a binary methanol−water system and compared to the rigorous simulation results obtained using Aspen Plus. Moreover, the McCabe−Thiele diagram of the HIDiC is also drawn using the extended Ponchon−Savarit method and presented in this study. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie9005468