Journal
CATALYSIS LETTERS
Volume 125, Issue 1-2, Pages 8-13Publisher
SPRINGER
DOI: 10.1007/s10562-008-9538-x
Keywords
lignan; carbon nanofibres; mass transfer; kinetics
Categories
Funding
- European Union [506621]
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The influence of catalyst particle size, stirring rate, catalyst mass (0.2-0.6 g), reaction temperature (60-70 degrees C), and reactant concentration (1.3-4 mmol/L, with constant reactant/catalyst ratio) on the hydrogenolysis of the lignan hydroxymatairesinol (HMR) to matairesinol (MAT) was studied under hydrogen atmosphere using a carbon nanofibre supported palladium catalyst. When the temperature or HMR concentration was increased, the reaction rate increased as expected. However, the reaction rate was inversely dependent on the stirring rate, e.g., was influenced by external mass transfer, which was explained by the fact that the reaction rate decreases at higher hydrogen concentrations.
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