Photocatalytic Upgrading of Lignin Oil to Diesel Precursors and Hydrogen
| Autor: | Min Wang, Hongru Zhou, Zhe Zhang, Zhaolin Dou |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Hydrogen 010405 organic chemistry Nanoparticle chemistry.chemical_element General Medicine General Chemistry 010402 general chemistry 01 natural sciences Catalysis 0104 chemical sciences Diesel fuel chemistry.chemical_compound Chemical engineering chemistry Biofuel Photocatalysis Lignin Hydrodeoxygenation |
| Zdroj: | Angewandte Chemie International Edition. 60:16399-16403 |
| ISSN: | 1521-3773 1433-7851 |
| DOI: | 10.1002/anie.202105692 |
| Popis: | Producing renewable biofuels from biomass is a promising way to meet future energy demand. Here, we demonstrated a lignin to diesel route via dimerization of the lignin oil followed by hydrodeoxygenation. The lignin oil undergoes C-C bond dehydrogenative coupling over Au/CdS photocatalyst under visible light irradiation, co-generating diesel precursors and hydrogen. The Au nanoparticles loaded on CdS can effectively restrain the recombination of photogenerated electrons and holes, thus improving the efficiency of the dimerization reaction. About 2.4 mmol gcatal-1 h-1 dimers and 1.6 mmol gcatal-1 h-1 H2 were generated over Au/CdS, which is about 12 and 6.5 times over CdS, respectively. The diesel precursors are finally converted into C16-C18 cycloalkanes or aromatics via hydrodeoxygenation reaction using Pd/C or porous CoMoS catalyst, respectively. The conversion of pine sawdust to diesel was performed to demonstrate the feasibility of the lignin-to-diesel route. |
| Databáze: | OpenAIRE |
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