Halloysite-Supported Ru-Based Bifunctional Catalysts for the Hydrodeoxygenation of Guaiacol

IF 1.1 4区工程技术 Q3 CHEMISTRY, ORGANIC

Petroleum Chemistry Pub Date : 2026-04-16 DOI:10.1134/S0965544126600372

Gleb O. Zasypalov, Vladimir A. Klimovsky, Egor S. Abramov, Ekaterina M. Smirnova, Lubov D. Zatsepina, Kirill P. Glotov, Valentin D. Stytsenko, Aleksandr P. Glotov

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Abstract

This study investigates the effects of the active-phase deposition method on the properties and performance of Ru-based catalysts supported on halloysite nanotubes (HNTs) in the model hydrodeoxygenation (HDO) of guaiacol. Among the loading methods tested—incipient wetness impregnation, vacuum impregnation, and microwave-assisted impregnation—the last provided the highest dispersion of the resulting ruthenium nanoparticles and their preferential location inside the lumen of the nanotubes. For the Ru/HNT catalyst synthesized by microwave-assisted impregnation, optimal reaction conditions were established: 180°C, 3 MPa H₂, a guaiacol/Ru molar ratio of 200, and water as a solvent. Under these conditions, guaiacol conversion reached 100% with a turnover frequency (TOF) of 278 h^–1; moreover, the selectivity toward the product of exhaustive HDO, cyclohexane, did not exceed 6% due to the low acidity of halloysite.

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愈创木酚加氢脱氧的高岭石负载钌基双功能催化剂

研究了活性相沉积法对愈创木酚模型加氢脱氧（HDO）过程中高岭土纳米管负载钌基催化剂（HNTs）性能的影响。在测试的加载方法中，湿浸渍、真空浸渍和微波辅助浸渍，最后一种方法提供了得到的钌纳米粒子的最高分散性和它们在纳米管腔内的优先位置。采用微波辅助浸渍法制备Ru/HNT催化剂，确定了最佳反应条件：180℃，3 MPa H2，愈创木酚/Ru摩尔比为200，水为溶剂。在此条件下，愈创木酚转化率达到100%，转换频率为278 h-1；此外，由于高岭土的酸性较低，对穷举式HDO产物环己烷的选择性不超过6%。

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来源期刊

Petroleum Chemistry 工程技术-工程：化工

CiteScore

2.50

自引率

21.40%

发文量

102

审稿时长

6-12 weeks

期刊介绍： Petroleum Chemistry (Neftekhimiya), founded in 1961, offers original papers on and reviews of theoretical and experimental studies concerned with current problems of petroleum chemistry and processing such as chemical composition of crude oils and natural gas liquids; petroleum refining (cracking, hydrocracking, and catalytic reforming); catalysts for petrochemical processes (hydrogenation, isomerization, oxidation, hydroformylation, etc.); activation and catalytic transformation of hydrocarbons and other components of petroleum, natural gas, and other complex organic mixtures; new petrochemicals including lubricants and additives; environmental problems; and information on scientific meetings relevant to these areas. Petroleum Chemistry publishes articles on these topics from members of the scientific community of the former Soviet Union.