Ni-W Catalysts Supported on TiO₂-Al₂O₃ for Efficient Green Diesel Production: "Standard" vs "Keggin" Comparison.

ABSTRACT: In order to obtain an efficient Ni-W catalyst for green diesel production, a new preparation method based on Keggin-type polyoxotungstates supported on TiO₂-Al₂O₃ was developed. The as-obtained catalyst (NiPW/TiO₂-Al₂O₃) was compared to a conventionally synthesized catalyst (NiW/TiO₂-Al₂O₃) during each step of the catalyst preparation. Depending on the preparation method, different Ni-W species were formed. Afterward, the catalysts were sulfided, and the Lewis and Brønsted acid concentrations were determined. Finally, all catalysts were tested in the hydroprocessing of soybean oil. The results show a direct correlation between hydroprocessing activity and Lewis/Brønsted acidity. The NiPWS/TiO

SUBMITTER: Rivera-Guasco R 

PROVIDER: S-EPMC11834744 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature