Applied Catalysis2022，Vol.31216.DOI:10.1016/j.apcatb.2022.121403

Hydrodeoxygenation of guaiacol via in situ H-2 generated through a water gas shift reaction over dispersed NiMoS catalysts from oil-soluble precursors: Tuning the selectivity towards cyclohexene

Vutolkina, A. V. Baigildin, I. G. Glotov, A. P. Pimerzin, Al. A. Akopyan, A. V. Maximov, A. L. Karakhanov, E. A.
Applied Catalysis2022，Vol.31216.DOI:10.1016/j.apcatb.2022.121403
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  • NSTL
  • Elsevier

Hydrodeoxygenation of guaiacol via in situ H-2 generated through a water gas shift reaction over dispersed NiMoS catalysts from oil-soluble precursors: Tuning the selectivity towards cyclohexene

Vutolkina, A. V. 1Baigildin, I. G. 1Glotov, A. P. 1Pimerzin, Al. A. 1Akopyan, A. V. 1Maximov, A. L. 1Karakhanov, E. A.1
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作者信息

  • 1. Lomonosov Moscow State Univ
  • 折叠

Abstract

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 degrees C 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.

Key words

Unsupported NiMoS catalysts/Oil-soluble precursors/Guaiacol/Hydrodeoxygenation/Tunable selectivity to cyclohexene/in situ hydrogen generation/Water gas shift reaction/MODEL-COMPOUND/BIO-OIL/PHASE HYDRODEOXYGENATION/PHENOLIC-COMPOUNDS/MO/SULFIDE/NI/CO/HYDRODESULFURIZATION/2-ETHYLPHENOL

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出版年

2022
Applied Catalysis

Applied Catalysis

ISSN：0926-3373
被引量18
参考文献量60
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