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Molybdenum-Containing Catalysts Based on Porous Aromatic Frameworks as Catalysts of Oxidation of Sulfur-Containing Compounds
https://orcid.org/https://orcid.org/0000-0001-6386-0006
https://orcid.org/https://orcid.org/0000-0001-7538-9012
https://orcid.org/https://orcid.org/0000-0002-4656-6232
https://orcid.org/https://orcid.org/0000-0002-7665-5404
New molybdenum-containing catalysts based on PAF-30 mesoporous carbon material for oxidation of sulfur-containing compounds (SCs) in a model fuel were synthesized. The PAF-30 support was modified with functional groups containing a positively charged nitrogen atom with various substituents. The modified supports were studied by the methods of low-temperature nitrogen adsorption/desorption, IR spectroscopy, and elemental analysis. The major factors affecting the oxidation were considered: reaction temperature and time, oxidant amount, catalyst dosage, and kind of sulfur-containing substrate. For the Мо/PAF-30-NEt3 catalyst, optimum conditions were found for oxidation of various classes of SCs in model mixtures: H2O2 : S molar ratio 6 : 1, 60°С, 60 min. The Мо/PAF-30-NEt3 catalyst operates in dibenzothiophene (DBT) oxidation during five cycles without appreciable activity loss.
Molybdenum-Containing Catalysts Based on Porous Aromatic Frameworks as Catalysts of Oxidation of Sulfur-Containing Compounds
https://orcid.org/https://orcid.org/0000-0001-6386-0006
https://orcid.org/https://orcid.org/0000-0001-7538-9012
https://orcid.org/https://orcid.org/0000-0002-4656-6232
https://orcid.org/https://orcid.org/0000-0002-7665-5404
New molybdenum-containing catalysts based on PAF-30 mesoporous carbon material for oxidation of sulfur-containing compounds (SCs) in a model fuel were synthesized. The PAF-30 support was modified with functional groups containing a positively charged nitrogen atom with various substituents. The modified supports were studied by the methods of low-temperature nitrogen adsorption/desorption, IR spectroscopy, and elemental analysis. The major factors affecting the oxidation were considered: reaction temperature and time, oxidant amount, catalyst dosage, and kind of sulfur-containing substrate. For the Мо/PAF-30-NEt3 catalyst, optimum conditions were found for oxidation of various classes of SCs in model mixtures: H2O2 : S molar ratio 6 : 1, 60°С, 60 min. The Мо/PAF-30-NEt3 catalyst operates in dibenzothiophene (DBT) oxidation during five cycles without appreciable activity loss.
Molybdenum-Containing Catalysts Based on Porous Aromatic Frameworks as Catalysts of Oxidation of Sulfur-Containing Compounds
https://orcid.org/https://orcid.org/0000-0001-6386-0006
https://orcid.org/https://orcid.org/0000-0001-7538-9012
https://orcid.org/https://orcid.org/0000-0002-4656-6232
https://orcid.org/https://orcid.org/0000-0002-7665-5404
New molybdenum-containing catalysts based on PAF-30 mesoporous carbon material for oxidation of sulfur-containing compounds (SCs) in a model fuel were synthesized. The PAF-30 support was modified with functional groups containing a positively charged nitrogen atom with various substituents. The modified supports were studied by the methods of low-temperature nitrogen adsorption/desorption, IR spectroscopy, and elemental analysis. The major factors affecting the oxidation were considered: reaction temperature and time, oxidant amount, catalyst dosage, and kind of sulfur-containing substrate. For the Мо/PAF-30-NEt3 catalyst, optimum conditions were found for oxidation of various classes of SCs in model mixtures: H2O2 : S molar ratio 6 : 1, 60°С, 60 min. The Мо/PAF-30-NEt3 catalyst operates in dibenzothiophene (DBT) oxidation during five cycles without appreciable activity loss.
Molybdenum-Containing Catalysts Based on Porous Aromatic Frameworks as Catalysts of Oxidation of Sulfur-Containing Compounds
Pet. Chem.
Akopyan, A. V. (author) / Eseva, E. A. (author) / Lukashov, M. O. (author) / Kulikov, L. A. (author)
Petroleum Chemistry ; 63 ; 257-267
2023-03-01
11 pages
Article (Journal)
Electronic Resource
English
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