Surface Species of Supported Ruthenium Catalysts in Selective Hydrogenation of Levulinic Esters for Bio-Refinery Application
Several supported noble metal catalysts were screened for the hydrogenation of methyl levulinate to γ-valerolactone (GVL). Among these catalysts 5 % Ru/C showed the highest conversion of 95 % of methyl levulinate with 91 % selectivity to GVL. A detailed characterization was carried out using TPR, XR...
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Published in | Catalysis letters Vol. 142; no. 6; pp. 779 - 787 |
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Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
Boston
Springer US
01.06.2012
Springer Springer Nature B.V |
Subjects | |
Online Access | Get full text |
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Summary: | Several supported noble metal catalysts were screened for the hydrogenation of methyl levulinate to γ-valerolactone (GVL). Among these catalysts 5 % Ru/C showed the highest conversion of 95 % of methyl levulinate with 91 % selectivity to GVL. A detailed characterization was carried out using TPR, XRD, XPS and BET techniques. XPS studies revealed that higher extent of Ru
0
species in case of carbon supported Ru was responsible for its higher hydrogenation activity as compared to Ru on other supports. Effect of process parameters such as temperature, H
2
pressure, catalyst and substrate concentration and metal loading on methyl LA conversion and selectivity to GVL also has been studied. 5 % Ru/C catalyst was found to be stable up to five reuses.
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ISSN: | 1011-372X 1572-879X |
DOI: | 10.1007/s10562-012-0822-4 |