Hydroconversion of Thiophene Derivatives over Dispersed Ni–Mo Sulfide Catalysts
- Авторлар: Vutolkina A.V.1, Makhmutov D.F.1, Zanina A.V.1, Maximov A.L.1,2, Kopitsin D.S.3, Glotov A.P.1,3, Egazar’yants S.V.1, Karakhanov E.A.1
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Мекемелер:
- Faculty of Chemistry, Moscow State University
- Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences
- Gubkin Russian State University of Oil and Gas (National Research University)
- Шығарылым: Том 58, № 14 (2018)
- Беттер: 1227-1232
- Бөлім: Article
- URL: https://journals.rcsi.science/0965-5441/article/view/180619
- DOI: https://doi.org/10.1134/S0965544118140141
- ID: 180619
Дәйексөз келтіру
Аннотация
The activity of unsupported Ni–Mo sulfide catalysts is studied in the hydroconversion of benzothiophene and dibenzothiophenes in the temperature range of 340–380°С and at an increased H2 pressure and in the СО/H2О system. The structure of dispersed catalysts formed by the in situ high-temperature decomposition of oil-soluble precursors (molybdenum hexacarbonyl, nickel naphthenate) is investigated by TEM. Effects of СО/H2О molar ratio, water mass content in the system, and CO pressure on the activity of the catalysts and yields of the products are explored. It is shown that, in the СО/H2О system, the highest conversion of benzothiophene and dibenzothiophene is attained at a temperature of 380°С, a СО pressure of 5 MPa, and a СО/H2О molar ratio of 2. The introduction of alkyl substituents into a dibenzothiophene molecule causes a reduction in the rate of reaction that predominantly occurs via the hydrogenation of aromatic rings. The catalyst activities in hydrogenation under H2 pressure and in the СО/H2О system are comparable.
Авторлар туралы
A. Vutolkina
Faculty of Chemistry, Moscow State University
Хат алмасуға жауапты Автор.
Email: annavutolkina@mail.ru
Ресей, Moscow, 119991
D. Makhmutov
Faculty of Chemistry, Moscow State University
Email: annavutolkina@mail.ru
Ресей, Moscow, 119991
A. Zanina
Faculty of Chemistry, Moscow State University
Email: annavutolkina@mail.ru
Ресей, Moscow, 119991
A. Maximov
Faculty of Chemistry, Moscow State University; Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences
Email: annavutolkina@mail.ru
Ресей, Moscow, 119991; Moscow, 119991
D. Kopitsin
Gubkin Russian State University of Oil and Gas (National Research University)
Email: annavutolkina@mail.ru
Ресей, Moscow, 119991
A. Glotov
Faculty of Chemistry, Moscow State University; Gubkin Russian State University of Oil and Gas (National Research University)
Email: annavutolkina@mail.ru
Ресей, Moscow, 119991; Moscow, 119991
S. Egazar’yants
Faculty of Chemistry, Moscow State University
Email: annavutolkina@mail.ru
Ресей, Moscow, 119991
E. Karakhanov
Faculty of Chemistry, Moscow State University
Email: annavutolkina@mail.ru
Ресей, Moscow, 119991
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