Applied Catalysis B: Environmental, volume 312, pages 121403

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 cyclohexene

Publication typeJournal Article
Publication date2022-09-01
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor22.1
ISSN09263373, 18733883
Catalysis
Process Chemistry and Technology
General Environmental Science
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 ℃ 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. • NiMoS catalysts from oil-soluble precursors were formed in situ under WGSR conditions. • HDO of GUA via in situ H 2 generated through a WGSR over NiMoS catalysts was studied. • Reaction pathway for HDO of GUA over NiMo sulfide under WGSR conditions was proposed. • Increasing temperature and reaction time favors CH-ene formation in water-rich media. • The reusability in HDO and active component evolution under S-assisted recycling was estimated.

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Vutolkina A. et al. 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 cyclohexene // Applied Catalysis B: Environmental. 2022. Vol. 312. p. 121403.
GOST all authors (up to 50) Copy
Vutolkina A., Baigildin I. G., Glotov A., Pimerzin A., Akopyan A. V., Maximov A. A., Karakhanov E. 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 cyclohexene // Applied Catalysis B: Environmental. 2022. Vol. 312. p. 121403.
RIS |
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RIS Copy
TY - JOUR
DO - 10.1016/j.apcatb.2022.121403
UR - https://doi.org/10.1016%2Fj.apcatb.2022.121403
TI - 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 cyclohexene
T2 - Applied Catalysis B: Environmental
AU - Vutolkina, Anna
AU - Baigildin, I G
AU - Glotov, Aleksandr
AU - Pimerzin, Aleksey
AU - Akopyan, Argam V
AU - Maximov, Alexey A
AU - Karakhanov, E.A
PY - 2022
DA - 2022/09/01 00:00:00
PB - Elsevier
SP - 121403
VL - 312
SN - 0926-3373
SN - 1873-3883
ER -
BibTex
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BibTex Copy
@article{2022_Vutolkina
author = {Anna Vutolkina and I G Baigildin and Aleksandr Glotov and Aleksey Pimerzin and Argam V Akopyan and Alexey A Maximov and E.A Karakhanov},
title = {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 cyclohexene},
journal = {Applied Catalysis B: Environmental},
year = {2022},
volume = {312},
publisher = {Elsevier},
month = {sep},
url = {https://doi.org/10.1016%2Fj.apcatb.2022.121403},
pages = {121403},
doi = {10.1016/j.apcatb.2022.121403}
}
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