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Loop reactor design and control for reversible exothermic reactions / Roman Sheinman in Industrial & engineering chemistry research, Vol. 48 N° 11 (Juin 2009) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 48 N° 11 (Juin 2009) . - pp. 5185–5192 Titre : Loop reactor design and control for reversible exothermic reactions Type de document : texte imprimé Auteurs : Roman Sheinman, Auteur ; Moshe Sheintuch, Auteur Année de publication : 2009 Article en page(s) : pp. 5185–5192 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Loop  reactor  Exothermic  reaction  Methanol  VOC  combustion Résumé : The loop reactor, in the form composed of several units, with feed and exit ports switching, is investigated for a reversible exothermic reaction like the synthesis of methanol. Unlike applications of VOC combustion, which have been extensively investigated and experimentally tested, the maximal temperature here is limited by equilibrium conditions and the advantage gained is due to the effectively periodic boundary conditions that describe the system: due to the rotating nature of the system, the stream undergoes cooling as it leaves the system, which in turn yields increasing conversions at an extent that depends on the parameters. We show that the system exhibits the slow-switching asymptote and the complex many-domains pattern that was identified for the irreversible case. The dynamic features within these domains are analyzed. Conversions are comparable to those in the commercially applied reactor with interstage cooling. Control procedures are suggested and tested. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie801333w [article] Loop reactor design and control for reversible exothermic reactions [texte imprimé] / Roman Sheinman, Auteur ; Moshe Sheintuch, Auteur . - 2009 . - pp. 5185–5192. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N° 11 (Juin 2009) . - pp. 5185–5192 Mots-clés : Loop  reactor  Exothermic  reaction  Methanol  VOC  combustion Résumé : The loop reactor, in the form composed of several units, with feed and exit ports switching, is investigated for a reversible exothermic reaction like the synthesis of methanol. Unlike applications of VOC combustion, which have been extensively investigated and experimentally tested, the maximal temperature here is limited by equilibrium conditions and the advantage gained is due to the effectively periodic boundary conditions that describe the system: due to the rotating nature of the system, the stream undergoes cooling as it leaves the system, which in turn yields increasing conversions at an extent that depends on the parameters. We show that the system exhibits the slow-switching asymptote and the complex many-domains pattern that was identified for the irreversible case. The dynamic features within these domains are analyzed. Conversions are comparable to those in the commercially applied reactor with interstage cooling. Control procedures are suggested and tested. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie801333w