Effect of Ru precursors and reduction conditions on catalyst performance in glycerol hydrogenolysis
| Title | Effect of Ru precursors and reduction conditions on catalyst performance in glycerol hydrogenolysis |
| Publication Type | Journal Article |
| Year of Publication | 2017 |
| Authors | Mane, RB, Patil, ST, Gurav, H, Rayalu, SS, Rode, CV |
| Journal | ChemistrySelect |
| Volume | 2 |
| Issue | 4 |
| Pagination | 1734-1745 |
| Date Published | FEB |
| Type of Article | Article |
| ISSN | 23656549 |
| Abstract | Catalyst precursors, their reduction protocols and reaction conditions integrally influenced the activity and selectivity pattern in glycerol hydrogenolysis. Ru prepared from chloride precursor (Ru(Cl)/C−B) showed the maximum selectivity to C−C cleavage products EG (56 %) and methanol (17 %) with 23 % selectivity to 1,2-PDO. While, that prepared from nitrosyl precursor (Ru(n)/C−B) showed higher selectivity to 1,2-PDO (44 %) and lower to EG (42 %). The catalysts prepared either with chloride or nitrosyl precursors but reduced by H2 showed lower glycerol conversion (10-11 %) than NaBH4 reduced catalysts. For these catalysts, 1,2-PDO selectivity increased to 40–43 % along with the major formation of 2-propanol (48-49 %) and very less selectivities to C−C cleavage products. The lower activity of the H2 reduced catalysts can be related to their lower acidity and the bigger Ru metal particle size (3-5 nm). For Ru(Cl)/C−B catalyst, glycerol conversion increased from 28–97 % with a rise in temperature from 180 to 250 oC also favoring 1,2-PDO selectivity; indicating that C−O bond cleavage was favoured in comparison to C−C scission, at higher temperature. |
| DOI | 10.1002/slct.201700049 |
| Type of Journal (Indian or Foreign) | Foreign |
| Impact Factor (IF) | 1.505 |
Divison category:
Chemical Engineering & Process Development