Effect of Flow Rate of a Biphasic Reaction Mixture on Limonene Hydrogenation in High Pressure CO2

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 nonre...

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Bibliographic Details
Published in:Industrial & engineering chemistry research 2009-08, Vol.48 (15), p.7060-7064
Main Authors: Bogel-Łukasik, Ewa, Bogel-Łukasik, Rafał, Nunes da Ponte, Manuel
Format: Article
Language:English
Subjects:
Applied sciences
Chemical engineering
Exact sciences and technology
Kinetics, Catalysis, and Reaction Engineering
Reactors
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Summary: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.
ISSN:0888-5885
1520-5045
DOI:10.1021/ie900450m