Selective deoxygenation of fatty acids to fuel-range hydrocarbons over Pt-MOx/ZrO2 (M = Mo and W) catalysts
| Autor: | Sagar Janampelli, Srinivas Darbha |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Decarboxylation
Chemistry Decarbonylation 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Catalysis 0104 chemical sciences chemistry.chemical_compound 0210 nano-technology Selectivity Bifunctional Bimetallic strip Deoxygenation Hydrodeoxygenation Nuclear chemistry |
| Zdroj: | Catalysis Today. 375:174-180 |
| ISSN: | 0920-5861 |
| DOI: | 10.1016/j.cattod.2020.04.020 |
| Popis: | A comparative catalytic activity study of Pt-MoOx/ZrO2 and Pt-WOx/ZrO2 for deoxygenation of oleic acid (OA) forming fuel-range, linear hydrocarbons is reported. These catalysts (with 4 wt% Pt and 8 wt% Mo or W) were prepared by a sequential wet-impregnation method and characterized for the structural and electronic properties. Pt-MoOx/ZrO2 showed higher catalytic activity than Pt-WOx/ZrO2. Hydrodeoxygenation was the selective pathway over these bifunctional catalysts yielding n-octadecane. High conversion of OA was achieved at 200 °C itself. On the contrary, monometallic Pt/ZrO2 was weakly active. It was selective mainly toward decarboxylation/decarbonylation producing n-heptadecane. Higher amounts of Pt and metal oxide in reduced forms are responsible for the high hydrodeoxygenation activity and selectivity of these reusable, bimetallic catalysts. |
| Databáze: | OpenAIRE |
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