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Hydrodeoxygenation of guaiacol via in situ H2 generated through a water gas shift reaction over dispersed NiMoS catalysts from oil-soluble precursors: Tuning the selectivity towards cyclohexeneстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 18 мая 2022 г.
- Авторы: Vutolkina A.V., Baigildin I.G., Glotov A.P., Pimerzin Al A., Akopyan A.V., Maximov A.L., Karakhanov E.A.
- Журнал: Applied Catalysis B: Environmental
- Том: 312
- Год издания: 2022
- Издательство: Elsevier BV
- Местоположение издательства: Netherlands
- Номер статьи: 121403
- DOI: 10.1016/j.apcatb.2022.121403
- Аннотация: We report efficient hydrodeoxygenation of guaiacol via in situ hydrogen generated through Water Gas Shift (WGS) reaction over nanosized unsupported NiMoS catalysts with tunable selectivity toward cyclohexene. This strategy possesses a direct reaction route of oxygen-containing compounds from bio-oils depending on catalysts precursors and reaction conditions. The active catalytic species were formed in situ through the high-temperature decomposition of oil-soluble metal precursors followed by sulfidation in water-in-oil sulfur-containing emulsions. Unsupported NiMoS catalysts were found to provide 100% guaiacol conversion at 320–380 ℃ and 5 MPa CO pressure. Reaction routes and mechanisms for hydrodeoxygenation of guaiacol were proposed. Ni:Mo= 1:3 and sulfur content of 1.2–1.5 wt% favor higher cyclohexene selectivity decreases at low temperature and short reaction time (30–40 wt% water content, CO pressure of 5 MPa). The catalysts were found to be reusable at least 6 cycles in the sulfur-assisted hydrodeoxygenation of guaiacol with maintaining conversion, and active component evolution was studied.
- Добавил в систему: Сафронихин Анатолий Викторович