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Multiplicity and stability of chemical reactors with evaporative cooling / Manuel Z. Solórzano 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. 9025–9039 Titre : Multiplicity and stability of chemical reactors with evaporative cooling Type de document : texte imprimé Auteurs : Manuel Z. Solórzano, Auteur ; W. Harmon Ray, Auteur Année de publication : 2009 Article en page(s) : p. 9025–9039 Note générale : Chemistry engineering Langues : Anglais (eng) Mots-clés : chemical  reactors  evaporative  cooling Résumé : This work characterizes the dynamic behavior of reactors with evaporative cooling. The process under consideration is a continuous stirred tank reactor used to carry out an exothermic irreversible first-order reaction with heat removal through the wall as well as by partial evaporation of the reacting liquid followed by return of the condensate to the reactor. Bifurcation analysis is used to classify the stability character and the types of multiplicity and oscillatory behavior to be expected. A variety of practical situations is examined, including cases of volatile reactant, volatile or nonvolatile product (liquid or solid), and volatile solvent. For a fixed vapor flowrate to the condenser, the dynamic structure of reactors with evaporative cooling is qualitatively similar to the case with wall cooling alone. Other cases show significantly different structures. Cases with five steady states and two regions of three steady states are found with evaporative cooling operation, and for some conditions even seven steady states may be possible. A rich variety of dynamic behavior is predicted. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie800044b [article] Multiplicity and stability of chemical reactors with evaporative cooling [texte imprimé] / Manuel Z. Solórzano, Auteur ; W. Harmon Ray, Auteur . - 2009 . - p. 9025–9039. Chemistry engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 47 N° 23 (Décembre 2008) . - p. 9025–9039 Mots-clés : chemical  reactors  evaporative  cooling Résumé : This work characterizes the dynamic behavior of reactors with evaporative cooling. The process under consideration is a continuous stirred tank reactor used to carry out an exothermic irreversible first-order reaction with heat removal through the wall as well as by partial evaporation of the reacting liquid followed by return of the condensate to the reactor. Bifurcation analysis is used to classify the stability character and the types of multiplicity and oscillatory behavior to be expected. A variety of practical situations is examined, including cases of volatile reactant, volatile or nonvolatile product (liquid or solid), and volatile solvent. For a fixed vapor flowrate to the condenser, the dynamic structure of reactors with evaporative cooling is qualitatively similar to the case with wall cooling alone. Other cases show significantly different structures. Cases with five steady states and two regions of three steady states are found with evaporative cooling operation, and for some conditions even seven steady states may be possible. A rich variety of dynamic behavior is predicted. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie800044b