Preparation of Nickel Phosphide Hydrodesulfurization Catalysts Assisted by Supercritical Carbon Dioxide
| Autor: | Denis Uzio, Cyril Aymonier, Blanca Motos-Pérez |
|---|---|
| Přispěvatelé: | Institut de Chimie de la Matière Condensée de Bordeaux (ICMCB), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut Polytechnique de Bordeaux-Université de Bordeaux (UB), IFP Energies nouvelles (IFPEN), IFPEN, Région Aquitaine |
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Supercritical carbon dioxide
Materials science 010405 organic chemistry Phosphide Organic Chemistry Nanoparticle chemistry.chemical_element Nanotechnology [CHIM.MATE]Chemical Sciences/Material chemistry 010402 general chemistry Heterogeneous catalysis 01 natural sciences 7. Clean energy Catalysis Supercritical fluid 0104 chemical sciences Inorganic Chemistry Nickel chemistry.chemical_compound chemistry Chemical engineering Physical and Theoretical Chemistry Hydrodesulfurization |
| Zdroj: | ChemCatChem ChemCatChem, Wiley, 2015, 7 (21), pp.3441-3444. ⟨10.1002/cctc.201500755⟩ |
| ISSN: | 1867-3899 |
| Popis: | To meet the increasing demand for clean fuels, deep hydrotreatment reactions are required, and thereby, improvement of the performance of the catalysts is highly desired. Silica-supported nickel phosphide (Ni2P) nanoparticles have been reported to be efficient catalysts for hydrodesulfurization (HDS) reactions. We propose herein an innovative preparation method assisted by supercritical carbon dioxide (scCO2) to produce highly active Ni2P nanoparticles combining small size and high reducibility. In addition, scCO2 promotes the formation of the Ni2P phase with respect to the less active Ni12P5 phase. Such phosphide catalysts exhibit high activity for the HDS of 4,6-dimethyldibenzothiophene, with a rate constant up to one order of magnitude higher than that of non-supercritical references and close to conventional alumina supported NiMoS catalyst. |
| Databáze: | OpenAIRE |
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