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Direct hydration of β-caryophyllene / Gaodong Yang in Industrial & engineering chemistry research, Vol. 51 N° 49 (Décembre 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 49 (Décembre 2012) . - pp. 15864-15871 Titre : Direct hydration of β-caryophyllene Type de document : texte imprimé Auteurs : Gaodong Yang, Auteur ; Pingkeng Wu, Auteur ; Zheng Zhou, Auteur Année de publication : 2013 Article en page(s) : pp. 15864-15871 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Hydration Résumé : This study of β-caryophyllene hydration to produce β-caryophyllene alcohol was carried out catalyzed by strong acidic cation exchange resin NKC-9. The effects of different parameters such as agitation speed, catalyst type, catalyst loading, mass ratio of the reactants, temperature, and reaction time on the conversion of β-caryophyflene and yield of β-caryophyllene alcohol in a stirred-tank reactor have been investigated to obtain the optimal conditions. Under the optimal conditions (catalyst loading 20%(w/w), nβ-caryophyllene/nwater 1/1, reaction temperature 363.15 K, reaction time 30―40 min), the experiment was then carried out in a pilot-scale stirred tank reactor and in a novel pilot-scale jet reactor respectively to achieve excellent performance. The β-caryophyllene alcohol has been purified by rectifying column and recrystallized. A pseudohomogeneous (PH) model was used to correlate the kinetic data in the temperature range from 333.15 to 363.15 K. The estimated kinetic parameters make the calculated results in excellent agreement with the experimental results. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=26732111 [article] Direct hydration of β-caryophyllene [texte imprimé] / Gaodong Yang, Auteur ; Pingkeng Wu, Auteur ; Zheng Zhou, Auteur . - 2013 . - pp. 15864-15871. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 49 (Décembre 2012) . - pp. 15864-15871 Mots-clés : Hydration Résumé : This study of β-caryophyllene hydration to produce β-caryophyllene alcohol was carried out catalyzed by strong acidic cation exchange resin NKC-9. The effects of different parameters such as agitation speed, catalyst type, catalyst loading, mass ratio of the reactants, temperature, and reaction time on the conversion of β-caryophyflene and yield of β-caryophyllene alcohol in a stirred-tank reactor have been investigated to obtain the optimal conditions. Under the optimal conditions (catalyst loading 20%(w/w), nβ-caryophyllene/nwater 1/1, reaction temperature 363.15 K, reaction time 30―40 min), the experiment was then carried out in a pilot-scale stirred tank reactor and in a novel pilot-scale jet reactor respectively to achieve excellent performance. The β-caryophyllene alcohol has been purified by rectifying column and recrystallized. A pseudohomogeneous (PH) model was used to correlate the kinetic data in the temperature range from 333.15 to 363.15 K. The estimated kinetic parameters make the calculated results in excellent agreement with the experimental results. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=26732111

Kinetics study of direct hydration of dihydromyrcene in a Jet reactor / Yong Liu in Industrial & engineering chemistry research, Vol. 49 N° 7 (Avril 2010) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 49 N° 7 (Avril 2010) . - pp. 3170–3175 Titre : Kinetics study of direct hydration of dihydromyrcene in a Jet reactor Type de document : texte imprimé Auteurs : Yong Liu, Auteur ; Zheng Zhou, Auteur ; Gaodong Yang, Auteur Année de publication : 2010 Article en page(s) : pp. 3170–3175 Note générale : Industrial Chemistry Langues : Anglais (eng) Mots-clés : Kinetics  Hydration  Hydratiodromyrcene  Jet  Reactor Résumé : A novel pilot-scale jet reactor was applied to study the direct hydration of dihydromyrcene (DHM) with H2O using strong acid cation exchange resins (SACER) as catalysts. The effect of various parameters such as liquid circulation flow rate, temperature, catalyst loading, and mass ratio of the reactants was studied in detail. The equilibrium constants of the direct hydration were calculated on the basis of the activities that were predicted using UNIFAC group contribution method. A pseudohomogeneous (PH) model was used to correlate the kinetic data in the temperature range from 353.15 to 383.15 K. The estimated kinetic parameters make the calculated results in excellent agreement with the experimental results, indicating that the PH model gives a good representation of the kinetic behavior for the direct hydration of DHM. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie901276w [article] Kinetics study of direct hydration of dihydromyrcene in a Jet reactor [texte imprimé] / Yong Liu, Auteur ; Zheng Zhou, Auteur ; Gaodong Yang, Auteur . - 2010 . - pp. 3170–3175. Industrial Chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 7 (Avril 2010) . - pp. 3170–3175 Mots-clés : Kinetics  Hydration  Hydratiodromyrcene  Jet  Reactor Résumé : A novel pilot-scale jet reactor was applied to study the direct hydration of dihydromyrcene (DHM) with H2O using strong acid cation exchange resins (SACER) as catalysts. The effect of various parameters such as liquid circulation flow rate, temperature, catalyst loading, and mass ratio of the reactants was studied in detail. The equilibrium constants of the direct hydration were calculated on the basis of the activities that were predicted using UNIFAC group contribution method. A pseudohomogeneous (PH) model was used to correlate the kinetic data in the temperature range from 353.15 to 383.15 K. The estimated kinetic parameters make the calculated results in excellent agreement with the experimental results, indicating that the PH model gives a good representation of the kinetic behavior for the direct hydration of DHM. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie901276w