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Microreactor performance studies of the cycloaddition of isoamylene and a-methylstyrene / Obiefuna C. Okafor in Industrial & engineering chemistry research, Vol. 49 N° 12 (Juin 2010) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 49 N° 12 (Juin 2010) . - pp. 5549–5560 Titre : Microreactor performance studies of the cycloaddition of isoamylene and a-methylstyrene Type de document : texte imprimé Auteurs : Obiefuna C. Okafor, Auteur ; Sunitha Tadepalli, Auteur ; Geatesh Tampy, Auteur Année de publication : 2010 Article en page(s) : pp. 5549–5560 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Isoamylene  α-methylstyrene  Cycloaddition  reaction Résumé : The cycloaddition reaction between isoamylene and α-methylstyrene yields indane compounds 1,1,2,3,3,-pentamethylindane and 3-ethyl-1,1,3-trimethylindane, which are intermediate cyclic products used in the synthesis of musk fragrances. This exothermic reaction is usually carried out industrially in large semibatch reactors. The microreactor, with enhanced heat and mass transfer characteristics, was used for the reaction with aqueous sulfuric acid as catalyst. The dependence of reactant conversion, product yield, and average reaction rates on catalyst concentration, temperature, velocity, residence time, and the molar ratio of the reactants in the feed was investigated. A similar study was also performed in the semibatch reactor to compare its performance with that of the microreactor. Higher product yields were obtained in the microreactor, and the average reaction rates in the microreactor were 3 orders of magnitude greater than those obtained in the semibatch reactor. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie901794p [article] Microreactor performance studies of the cycloaddition of isoamylene and a-methylstyrene [texte imprimé] / Obiefuna C. Okafor, Auteur ; Sunitha Tadepalli, Auteur ; Geatesh Tampy, Auteur . - 2010 . - pp. 5549–5560. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 12 (Juin 2010) . - pp. 5549–5560 Mots-clés : Isoamylene  α-methylstyrene  Cycloaddition  reaction Résumé : The cycloaddition reaction between isoamylene and α-methylstyrene yields indane compounds 1,1,2,3,3,-pentamethylindane and 3-ethyl-1,1,3-trimethylindane, which are intermediate cyclic products used in the synthesis of musk fragrances. This exothermic reaction is usually carried out industrially in large semibatch reactors. The microreactor, with enhanced heat and mass transfer characteristics, was used for the reaction with aqueous sulfuric acid as catalyst. The dependence of reactant conversion, product yield, and average reaction rates on catalyst concentration, temperature, velocity, residence time, and the molar ratio of the reactants in the feed was investigated. A similar study was also performed in the semibatch reactor to compare its performance with that of the microreactor. Higher product yields were obtained in the microreactor, and the average reaction rates in the microreactor were 3 orders of magnitude greater than those obtained in the semibatch reactor. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie901794p