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Hydrodeoxygenation of Lignin Depolymerization Products: Activity of In Situ Synthesized NiMoS Catalysts in Syringol and 2-Methoxyhydroquinone Conversionстатья
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: 23 января 2026 г.
- Авторы: Mamian L.G., Kuchinskaya T.S., Kniazeva M.I., Maximov A.L.
- Журнал: Petroleum Chemistry
- Том: 65
- Номер: 8
- Год издания: 2025
- Издательство: Pleiades Publishing, Ltd
- Местоположение издательства: Road Town, United Kingdom
- Первая страница: 943
- Последняя страница: 950
- DOI: 10.1134/s0965544125601759
- Аннотация: This study presents the first investigation into the hydrodeoxygenation (HDO) of syringol (2,6-dimethoxyphenol) and 2-methoxyhydroquinone—model compounds for lignin depolymerization products—using in situ synthesized NiMoS nanocatalysts. The catalysts were formed from oil-soluble precursors (Mo(CO)6 and Ni(II) 2-ethylhexanoate) and elemental sulfur. By varying the reaction conditions (300–350°C, 1–7 MPa H2, 15–300 min, and substrate-to-Mo molar ratios of 10.5 : 1 to 105.3 : 1), product distribution can be controlled to achieve 100% conversion and high yields of deoxygenated products, primarily cyclohexane. Characterization by XRD, HR-TEM, and XPS revealed that the catalyst formed during syringol conversion consisted of highly dispersed three-layer nanoparticles (average length: 4.3 nm), dominated by MoS2 (81.5%) and a Ni–Mo–S active mixed phase (80.4%). The proposed HDO pathway for syringol proceeds through initial demethoxylation to guaiacol and phenol, followed by their subsequent deoxygenation and hydrogenation.
- Добавил в систему: Захарян Елена Михайловна