Solvent-free Hydrodeoxygenation of γ-Nonalactone on Noble Metal Catalysts Supported on Zirconia
| Autor: | Eveliina Mäkelä, Aki Braunschweiler, Riikka L. Puurunen, Reetta Karinen, Marina Lindblad, Juha Lehtonen, José Luis González Escobedo |
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| Přispěvatelé: | Department of Chemical and Metallurgical Engineering, Hydrometallurgy and Corrosion, Department of Biotechnology and Chemical Technology, Neste Jacobs Oy, Aalto-yliopisto, Aalto University |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Hydrocarbon
Batch reactor chemistry.chemical_element engineering.material 010402 general chemistry 01 natural sciences Oxygen Catalysis chemistry.chemical_compound γ-Nonalactone Noble metal Levulinic acid Organic chemistry chemistry.chemical_classification 010405 organic chemistry Hydrodeoxygenation General Chemistry Fuel 0104 chemical sciences Ruthenium chemistry engineering Levulinic acid dimer |
| Zdroj: | González Escobedo, J L, Mäkelä, E, Braunschweiler, A, Lehtonen, J, Lindblad, M, Puurunen, R L & Karinen, R 2019, ' Solvent-free Hydrodeoxygenation of γ-Nonalactone on Noble Metal Catalysts Supported on Zirconia ', Topics in Catalysis, vol. 62, no. 7-11, pp. 724-737 . https://doi.org/10.1007/s11244-019-01161-6 |
| DOI: | 10.1007/s11244-019-01161-6 |
| Popis: | The possibility to valorize levulinic acid (LA) dimers to lignocellulose-based biofuels via hydrodeoxygenation (HDO) was assessed using γ-nonalactone (GNL) as a model compound. Catalytic HDO experiments were performed in a batch reactor at 280 °C and at an average pressure of 57.5 bar H 2 . Noble metal (Ru, Rh, Pd, and Pt) catalysts supported on ZrO 2 . All the catalysts were active in removing oxygen from the reactant. However, the most selective catalyst for hydrocarbons (24%) was ruthenium. Unlike the other tested catalysts, Ru also provided branched hydrocarbons. In view of Ru’s comparatively high selectivity to hydrocarbons, it was tested at various reaction temperatures (220–280 °C) for 300 min. The experiments at lower temperatures resulted in less hydrocarbons and more intermediate products, such as alcohols. In total, nearly 70 products were identified, and some of the reactions that likely occurred in the HDO experiments were discussed. The production of hydrocarbons from GNL highlights the potential of LA dimers as a route to lignocellulose-based biofuels. |
| Databáze: | OpenAIRE |
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