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Design and control of the side reactor configuration for production of ethyl acetate / Reui-Chiang Tsai in Industrial & engineering chemistry research, Vol. 47 N° 23 (Décembre 2008) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 47 N° 23 (Décembre 2008) . - p. 9472–9484 Titre : Design and control of the side reactor configuration for production of ethyl acetate Type de document : texte imprimé Auteurs : Reui-Chiang Tsai, Auteur ; Jian Kai Cheng, Auteur ; Huang, Hsiao-Ping, Auteur Année de publication : 2009 Article en page(s) : p. 9472–9484 Note générale : Chemistry engineering Langues : Anglais (eng) Mots-clés : Design  and  control  Side  reactor  configuration  Production  of  ethyl  acetate Résumé : Despite some potential advantages of reactive distillation (RD), reactive distillation may suffer from maintenance/design problems such as catalyst deactivation/replacement and equipment design. In this work, an alternative design, a side reactor configuration, is sought and the process of interest is production of ethyl acetate via esterification. The reactive distillation study by Tang et al. (2005) reveals that almost 90% conversion takes place in the column base of the RD. This naturally suggests a coupled reactor/distillation configuration where all of the catalyst is packed in the bottoms base, denoted as single-reactive tray reactive distillation (RD-SRT). This mitigates the maintenance problem associated with conventional RD. However, simulation results show that, with the same amount of catalyst loading, the SRT configuration cannot achieve the same performance as the RD (∼93% conversion). Another alternative is adding external reactors to the SRT, and this is termed the side reactor configuration (SRC). A systematic design procedure is devised for the SRC design, and the objective function to be minimized is the total annual cost (TAC). The results show that the TAC of the SRC only increases by 5% as compared to that of the RD. A plantwide control structure is developed followed by process identification and controller tuning. The results show that reasonable control performance can be achieved using simple temperature control for the feed flow rate and feed composition disturbances. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie071648o [article] Design and control of the side reactor configuration for production of ethyl acetate [texte imprimé] / Reui-Chiang Tsai, Auteur ; Jian Kai Cheng, Auteur ; Huang, Hsiao-Ping, Auteur . - 2009 . - p. 9472–9484. Chemistry engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 47 N° 23 (Décembre 2008) . - p. 9472–9484 Mots-clés : Design  and  control  Side  reactor  configuration  Production  of  ethyl  acetate Résumé : Despite some potential advantages of reactive distillation (RD), reactive distillation may suffer from maintenance/design problems such as catalyst deactivation/replacement and equipment design. In this work, an alternative design, a side reactor configuration, is sought and the process of interest is production of ethyl acetate via esterification. The reactive distillation study by Tang et al. (2005) reveals that almost 90% conversion takes place in the column base of the RD. This naturally suggests a coupled reactor/distillation configuration where all of the catalyst is packed in the bottoms base, denoted as single-reactive tray reactive distillation (RD-SRT). This mitigates the maintenance problem associated with conventional RD. However, simulation results show that, with the same amount of catalyst loading, the SRT configuration cannot achieve the same performance as the RD (∼93% conversion). Another alternative is adding external reactors to the SRT, and this is termed the side reactor configuration (SRC). A systematic design procedure is devised for the SRC design, and the objective function to be minimized is the total annual cost (TAC). The results show that the TAC of the SRC only increases by 5% as compared to that of the RD. A plantwide control structure is developed followed by process identification and controller tuning. The results show that reasonable control performance can be achieved using simple temperature control for the feed flow rate and feed composition disturbances. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie071648o