Selective Hydrodeoxygenation of Lignin‐Derived Vanillin via Hetero‐Structured High‐Entropy Alloy/Oxide Catalysts

Hierarchically structured catalysts for cascade and selective steam reforming/hydrodeoxygenation reactions.

We report a hierarchically structured catalyst with steam reforming and hydrodeoxygenation functionalities being deposited in the micropores and macropores, respectively. The catalyst is highly efficient to upgrade the pyrolysis vapors of pine forest product residual, resulting in a dramatically decreased acid content and increased hydrocarbon yield without external H2 supply.

Hydrodeoxygenation of m-cresol over gallium-modified beta zeolite catalysts

Ga-modified H-Beta (Ga/HBEA) zeolites were evaluated and compared to other Ga-containing catalysts supported on SiO2 and ZSM-5 (MFI) for the hydrodeoxygenation of m-cresol, a model compound representative of lignin-derived phenolics. The products include toluene, benzene, xylene, light hydrocarbons, as well as phenol and other oxygenated compounds. The appearance of bicyclic compounds suggests ...

Synthesis and Characterization of Nanostructured CuO/CeO2 Catalysts via Ultrasound Assisted Techniques used for Selective Oxidation of CO

Hydrodeoxygenation of Acetic Acid Using Monometallic and Bimetallic Catalysts Supported on Carbon

Heterogeneous catalytic hydrodeoxygenation (HDO) of biomass-derived feeds is a deoxygenation process that is of highly interest. Carboxylic acids are one of the main components of bio-oils and acetic acid (AA) is one of the most abundant of these carboxylic acids. This acid is rich in oxygen, therefore there is a lot of research for to produce fuel and other valuable chemicals such as ethanol. ...

Hydrogenation and Hydrodeoxygenation of 2-methyl-2-pentenal on supported metal catalysts

Platinum, palladium, and copper catalysts supported on precipitated silica have been studied for the hydrodeoxygenation and hydrogenation of 2-methyl-2-pentenal in the 200–400 C temperature range. The activity follows the order Pt > Pd > Cu. It has been found that at low temperatures, Pt and Pd are primarily active for the hydrogenation of the C@C bond to make 2-methyl-pentanal, with some decar...