Surface species of supported ruthenium catalysts in selective hydrogenation of levulinic esters for bio-refinery application
| Title | Surface species of supported ruthenium catalysts in selective hydrogenation of levulinic esters for bio-refinery application |
| Publication Type | Journal Article |
| Year of Publication | 2012 |
| Authors | Hengne, AM, Biradar, NS, Rode, CV |
| Journal | Catalysis Letters |
| Volume | 142 |
| Issue | 6 |
| Pagination | 779-787 |
| Date Published | JUN |
| ISSN | 1011-372X |
| Keywords | 5 % Ru/C, Biofeedstock, gamma-Valerolactone, H-2-TPR, Hydrogenation, Methyl levulinate, XPS |
| Abstract | Several supported noble metal catalysts were screened for the hydrogenation of methyl levulinate to gamma-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. |
| DOI | 10.1007/s10562-012-0822-4 |
| Type of Journal (Indian or Foreign) | Foreign |
| Impact Factor (IF) | 2.244 |