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Industrial loop reactor for catalytic propylene polymerization / Zheng-Hong Luo in Industrial & engineering chemistry research, Vol. 49 N° 22 (Novembre 2010) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 49 N° 22 (Novembre 2010) . - pp. 11232–11243 Titre : Industrial loop reactor for catalytic propylene polymerization : dynamic modeling of emergency accidents Type de document : texte imprimé Auteurs : Zheng-Hong Luo, Auteur ; Pei-Lin Su, Auteur ; Wei Wu, Auteur Année de publication : 2011 Article en page(s) : pp. 11232–11243 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Catalytic  Propylene  Polymerization Résumé : In industrial loop reactors for catalytic propylene polymerization, the reactor pressure can influence the polymerization rate, feed flow rate, and product properties, especially safe operation of the reactor. To predict the pressure change during polymerization and check the performance of pressure-relief devices in response to emergency accidents, a dynamic model was developed based on mass and energy balances as well as thermodynamics and kinetics. In this model, the pressure was related to the temperature by a state equation for high-pressure liquid. The pipeline equations of the reactors described by the conservation of mechanical energy were incorporated into the model to better predict the pressure. In addition to the pressure, the model can also predict other variables, such as temperature, slurry density, and solids holdup in the reactors. Dynamic data from an industrial plant were used for model validation. Furthermore, the application of the model was demonstrated by simulating several typical emergency accidents. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie1003784 [article] Industrial loop reactor for catalytic propylene polymerization : dynamic modeling of emergency accidents [texte imprimé] / Zheng-Hong Luo, Auteur ; Pei-Lin Su, Auteur ; Wei Wu, Auteur . - 2011 . - pp. 11232–11243. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 22 (Novembre 2010) . - pp. 11232–11243 Mots-clés : Catalytic  Propylene  Polymerization Résumé : In industrial loop reactors for catalytic propylene polymerization, the reactor pressure can influence the polymerization rate, feed flow rate, and product properties, especially safe operation of the reactor. To predict the pressure change during polymerization and check the performance of pressure-relief devices in response to emergency accidents, a dynamic model was developed based on mass and energy balances as well as thermodynamics and kinetics. In this model, the pressure was related to the temperature by a state equation for high-pressure liquid. The pipeline equations of the reactors described by the conservation of mechanical energy were incorporated into the model to better predict the pressure. In addition to the pressure, the model can also predict other variables, such as temperature, slurry density, and solids holdup in the reactors. Dynamic data from an industrial plant were used for model validation. Furthermore, the application of the model was demonstrated by simulating several typical emergency accidents. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie1003784