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Optimum design and analysis based on independent reaction amount for distillation column with side reactors / Lianghui Ding in Industrial & engineering chemistry research, Vol. 50 N° 19 (Octobre 2011) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 50 N° 19 (Octobre 2011) . - pp. 11143–11152 Titre : Optimum design and analysis based on independent reaction amount for distillation column with side reactors : production of benzyl chloride Type de document : texte imprimé Auteurs : Lianghui Ding, Auteur ; Jihai Tang, Auteur ; Mifen Cui, Auteur Année de publication : 2011 Article en page(s) : pp. 11143–11152 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Benzyl  chloride Résumé : Distillation columns with side reactors (SRCs) can be effectively employed to improve selectivity by manipulating the composition profiles of reactants and products inside the reaction zone. However, for the complex interaction between reaction and separation, it is difficult to simulate and optimize a SRC process. An independent reaction amount is introduced in simulating the SRC process to decouple the reaction kinetics from the mathematic models. Based on the concept of independent reaction amount, a systematic design approach, employing the Powell method, is developed to seek the internal synergistic effects between reaction and separation. The proposed optimum design methodology is demonstrated in a case study of benzyl chloride production. The effects of the design parameters, such as the number of separation stages, the stages between each reactor and the number of reactors on the process performance, are well-investigated. In addition, the effect of vapor boilup rate on the reaction capability is studied. Results demonstrate that, for the given vapor boilup rate, insufficient separation leads to a poor system performance, while excessive stages or reactors will not be beneficial toward improving reaction capability. Besides, by increasing the vapor boilup rate, the system performance can be improved obviously. The optimum configuration and the optimum match between separation and reaction can be achieved through the design approach. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie102171r [article] Optimum design and analysis based on independent reaction amount for distillation column with side reactors : production of benzyl chloride [texte imprimé] / Lianghui Ding, Auteur ; Jihai Tang, Auteur ; Mifen Cui, Auteur . - 2011 . - pp. 11143–11152. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 50 N° 19 (Octobre 2011) . - pp. 11143–11152 Mots-clés : Benzyl  chloride Résumé : Distillation columns with side reactors (SRCs) can be effectively employed to improve selectivity by manipulating the composition profiles of reactants and products inside the reaction zone. However, for the complex interaction between reaction and separation, it is difficult to simulate and optimize a SRC process. An independent reaction amount is introduced in simulating the SRC process to decouple the reaction kinetics from the mathematic models. Based on the concept of independent reaction amount, a systematic design approach, employing the Powell method, is developed to seek the internal synergistic effects between reaction and separation. The proposed optimum design methodology is demonstrated in a case study of benzyl chloride production. The effects of the design parameters, such as the number of separation stages, the stages between each reactor and the number of reactors on the process performance, are well-investigated. In addition, the effect of vapor boilup rate on the reaction capability is studied. Results demonstrate that, for the given vapor boilup rate, insufficient separation leads to a poor system performance, while excessive stages or reactors will not be beneficial toward improving reaction capability. Besides, by increasing the vapor boilup rate, the system performance can be improved obviously. The optimum configuration and the optimum match between separation and reaction can be achieved through the design approach. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie102171r