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Effect of flow rate of a biphasic reaction mixture on limonene hydrogenation in high pressure CO2 / Ewa Bogel-Lukasik in Industrial & engineering chemistry research, Vol. 48 N° 15 (Août 2009) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 48 N° 15 (Août 2009) . - pp. 7060–7064 Titre : Effect of flow rate of a biphasic reaction mixture on limonene hydrogenation in high pressure CO2 Type de document : texte imprimé Auteurs : Ewa Bogel-Lukasik, Auteur ; Rafal Bogel-lukasik, Auteur ; Manuel Nunes da Ponte, Auteur Année de publication : 2009 Article en page(s) : pp. 7060–7064 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Overall  flow  rate  Biphasic  reaction  mixture  Limonene  hydrogenation Résumé : In this work the effect of the overall flow rate of the biphasic reaction mixture on hydrogenation distribution products is reported. As it was already presented by us, the reaction rate strongly correlates with the phase equilibrium existing in the system. On the other hand, carbon dioxide is nonreactive; nevertheless by its presence it changes the energy balance. The catalytic performance in four kinds of overall flow rate conditions (1.3, 3.3, 5.3, and 7.3 mL/min) was compared under fixed hydrogen (2.5 MPa) and total pressure (12.5 MPa). The appearance of isomers of limonene and partially hydrogenated products significantly rely upon the flow rate used in the reaction. The 1% Pd SCN catalyst used in the reaction gave the final products trans- and cis-p-menthane in a 2/3 to 1/3 molar ratio. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie900450m [article] Effect of flow rate of a biphasic reaction mixture on limonene hydrogenation in high pressure CO2 [texte imprimé] / Ewa Bogel-Lukasik, Auteur ; Rafal Bogel-lukasik, Auteur ; Manuel Nunes da Ponte, Auteur . - 2009 . - pp. 7060–7064. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N° 15 (Août 2009) . - pp. 7060–7064 Mots-clés : Overall  flow  rate  Biphasic  reaction  mixture  Limonene  hydrogenation Résumé : In this work the effect of the overall flow rate of the biphasic reaction mixture on hydrogenation distribution products is reported. As it was already presented by us, the reaction rate strongly correlates with the phase equilibrium existing in the system. On the other hand, carbon dioxide is nonreactive; nevertheless by its presence it changes the energy balance. The catalytic performance in four kinds of overall flow rate conditions (1.3, 3.3, 5.3, and 7.3 mL/min) was compared under fixed hydrogen (2.5 MPa) and total pressure (12.5 MPa). The appearance of isomers of limonene and partially hydrogenated products significantly rely upon the flow rate used in the reaction. The 1% Pd SCN catalyst used in the reaction gave the final products trans- and cis-p-menthane in a 2/3 to 1/3 molar ratio. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie900450m

Kinetics of limonene hydrogenation in high-pressure CO2 at variation of hydrogen pressure / V. I. Anikeev in Industrial & engineering chemistry research, Vol. 49 N° 5 (Mars 2010) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 49 N° 5 (Mars 2010) . - pp. 2084–2090 Titre : Kinetics of limonene hydrogenation in high-pressure CO2 at variation of hydrogen pressure Type de document : texte imprimé Auteurs : V. I. Anikeev, Auteur ; A. Yermakova, Auteur ; Ewa Bogel-Lukasik, Auteur Année de publication : 2010 Article en page(s) : pp. 2084–2090 Note générale : Industrial Chemistry Langues : Anglais (eng) Mots-clés : Kinetics  of  Limonene;  hydrogen  pressure;  CO2 Résumé : A mechanism of limonene hydrogenation in high-pressure CO2 has been suggested using the experimental data. The experimental data on limonene hydrogenation in high-pressure CO2 were processed to elucidate the reaction mechanism and calculate the kinetic constants in rate equations for the proposed reaction scheme. The relationship between the total rate constant of limonene reduction and hydrogen pressure has been found. Note de contenu : Bibliogr. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie9010996 [article] Kinetics of limonene hydrogenation in high-pressure CO2 at variation of hydrogen pressure [texte imprimé] / V. I. Anikeev, Auteur ; A. Yermakova, Auteur ; Ewa Bogel-Lukasik, Auteur . - 2010 . - pp. 2084–2090. Industrial Chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 5 (Mars 2010) . - pp. 2084–2090 Mots-clés : Kinetics  of  Limonene;  hydrogen  pressure;  CO2 Résumé : A mechanism of limonene hydrogenation in high-pressure CO2 has been suggested using the experimental data. The experimental data on limonene hydrogenation in high-pressure CO2 were processed to elucidate the reaction mechanism and calculate the kinetic constants in rate equations for the proposed reaction scheme. The relationship between the total rate constant of limonene reduction and hydrogen pressure has been found. Note de contenu : Bibliogr. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie9010996