Promoter nature effect on the sensitivity of Ni–Mo/Al2O3, Co–Mo/Al2O3, and Ni–Co–Mo/Al2O3 catalysts to dodecanoic acid in the co-hydrotreating of dibenzothiophene and naphthalene
| Autor: | A. V. Mozhaev, P. A. Nikul’shin, V. A. Sal’nikov, A. S. Koklyukhin |
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| Rok vydání: | 2017 |
| Předmět: |
Heteropoly acid
010405 organic chemistry Inorganic chemistry General Chemistry 010402 general chemistry 01 natural sciences Catalysis 0104 chemical sciences Computer Science Applications chemistry.chemical_compound Adsorption chemistry Transmission electron microscopy Dibenzothiophene Modeling and Simulation Hydrodesulfurization Naphthalene |
| Zdroj: | Kinetics and Catalysis. 58:463-470 |
| ISSN: | 1608-3210 0023-1584 |
| Popis: | The promoter nature effect on the sensitivity of Mo/Al2O3, Ni–Mo/Al2O3, Co–Mo/Al2O3, and Ni‒Co–Mo/Al2O3 catalysts to dodecanoic acid in the hydrotreating of a mixture containing dibenzothiophene and naphthalene has been investigated. The experiments have been carried out using a flow-through setup. The catalysts have been prepared using the PMo12 heteropoly acid, Сo(Ni) citrates, and Co2Mo10 heteropoly acid and have been characterized by high-resolution transmission electron microscopy. The highest hydrodesulfurization activity in the presence of dodecanoic acid is shown by the trimetallic catalyst Ni–Co–Mo/Al2O3. The introduction of Ni is favorable for dodecanoic acid conversion via the hydrogenation route, thus increasing the С11: С12 ratio in the conversion products. Effective dodecanoic acid adsorption constants under the hydrotreating conditions have been calculated using the Langmuir–Hinshelwood model. |
| Databáze: | OpenAIRE |
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