Catalytic Hydrocracking of Petroleum Residue over Carbon-Supported Nickel−Molybdenum Sulfides
| Autor: | Daisuke Fujii, Yasunori Kuriki, Masato Kouzu, Ikuo Saito, Yoshikazu Sugimoto, Katsumi Hirano, Kunio Uchida, Kinya Sakanishi |
|---|---|
| Rok vydání: | 2005 |
| Předmět: |
inorganic chemicals
chemistry.chemical_classification Hydrogen Sulfide General Chemical Engineering Inorganic chemistry Energy Engineering and Power Technology chemistry.chemical_element Catalysis Residue (chemistry) chemistry.chemical_compound Nickel Fuel Technology chemistry Dibenzothiophene Molybdenum medicine Organic chemistry Activated carbon medicine.drug |
| Zdroj: | Energy & Fuels. 19:725-730 |
| ISSN: | 1520-5029 0887-0624 |
| DOI: | 10.1021/ef049895h |
| Popis: | Carbon-supported nickel−molybdenum sulfide (NMC) was prepared using an active carbon with a surface area of 3070 m2/g for the slurry-phase hydrocracking of petroleum residue. The hydrocracking catalysis was evaluated, in comparison with that for an alumina-supported nickel−molybdenum sulfide (NMA). The experimental hydrocracking was performed with the atmospheric residue of the Middle Eastern crude at 350−450 °C for 2 h in an autoclave initially pressurized with 5 MPa of hydrogen. NMC was more active in the radical quench reaction with the thermally decomposed residue than NMA, which was effective in reducing the residual fraction. NMC also provided less sulfur content for the liquid product than NMA. For the carbon-supported catalyst, it was evident that an increase in the surface area of the support caused enhancement of the hydrocracking catalysis. These results were verified through a reaction of the model compounds, 1-methylnaphthalene and dibenzothiophene. The higher activity was due to the better d... |
| Databáze: | OpenAIRE |
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