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Effect of noble metals on the performance of Ni–Mo catalysts for the hydrodeoxygenation of lignin oils to fuels

Kristensen, Tove A. LU orcid ; Margellou, Antigoni G. ; Hallböök, Filip LU orcid ; Abdelaziz, Omar Y. LU ; Blomberg, Sara LU ; Hulteberg, Christian P. LU orcid and Triantafyllidis, Konstantinos S. (2025) In Sustainable Energy and Fuels 9(22). p.6260-6268
Abstract

Improving the catalytic performance in the hydrodeoxygenation (HDO) of lignin oils to produce liquid fuels, while meeting industrial requirements, is important for addressing current environmental challenges. In the present study, the promoting effects of noble metals (Pd, Pt, and Ir) on the performance of the Ni–Mo/CeLa/Al2O3 catalyst were investigated in the HDO of a lignin-derived pyrolysis oil. Catalysts were prepared using incipient wetness impregnation, where 0.5 wt% of the noble metals were impregnated on the catalyst in a final, subsequent step. The HDO experiments were conducted either without or with dimethyl disulfide (DMDS) in a batch reactor at 320 °C and 50 bar (initial H2 pressure at room... (More)

Improving the catalytic performance in the hydrodeoxygenation (HDO) of lignin oils to produce liquid fuels, while meeting industrial requirements, is important for addressing current environmental challenges. In the present study, the promoting effects of noble metals (Pd, Pt, and Ir) on the performance of the Ni–Mo/CeLa/Al2O3 catalyst were investigated in the HDO of a lignin-derived pyrolysis oil. Catalysts were prepared using incipient wetness impregnation, where 0.5 wt% of the noble metals were impregnated on the catalyst in a final, subsequent step. The HDO experiments were conducted either without or with dimethyl disulfide (DMDS) in a batch reactor at 320 °C and 50 bar (initial H2 pressure at room temperature) for three hours. Interestingly, the highest deoxygenation degree was achieved over the reference catalyst when DMDS was added, in which the resulting oil contained approximately 60% aliphatic and phenolic compounds. Pt showed the most promising promoting effect, which is inferred from its improved hydrogenation capability.

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author
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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Sustainable Energy and Fuels
volume
9
issue
22
pages
9 pages
publisher
Royal Society of Chemistry
external identifiers
  • scopus:105026035435
ISSN
2398-4902
DOI
10.1039/d5se01014d
language
English
LU publication?
yes
additional info
Publisher Copyright: This journal is © The Royal Society of Chemistry, 2025
id
cac43dda-dfa7-49f6-84d9-f054350b5f2b
date added to LUP
2026-01-07 12:36:26
date last changed
2026-01-15 13:50:36
@article{cac43dda-dfa7-49f6-84d9-f054350b5f2b,
  abstract     = {{<p>Improving the catalytic performance in the hydrodeoxygenation (HDO) of lignin oils to produce liquid fuels, while meeting industrial requirements, is important for addressing current environmental challenges. In the present study, the promoting effects of noble metals (Pd, Pt, and Ir) on the performance of the Ni–Mo/CeLa/Al<sub>2</sub>O<sub>3</sub> catalyst were investigated in the HDO of a lignin-derived pyrolysis oil. Catalysts were prepared using incipient wetness impregnation, where 0.5 wt% of the noble metals were impregnated on the catalyst in a final, subsequent step. The HDO experiments were conducted either without or with dimethyl disulfide (DMDS) in a batch reactor at 320 °C and 50 bar (initial H<sub>2</sub> pressure at room temperature) for three hours. Interestingly, the highest deoxygenation degree was achieved over the reference catalyst when DMDS was added, in which the resulting oil contained approximately 60% aliphatic and phenolic compounds. Pt showed the most promising promoting effect, which is inferred from its improved hydrogenation capability.</p>}},
  author       = {{Kristensen, Tove A. and Margellou, Antigoni G. and Hallböök, Filip and Abdelaziz, Omar Y. and Blomberg, Sara and Hulteberg, Christian P. and Triantafyllidis, Konstantinos S.}},
  issn         = {{2398-4902}},
  language     = {{eng}},
  month        = {{11}},
  number       = {{22}},
  pages        = {{6260--6268}},
  publisher    = {{Royal Society of Chemistry}},
  series       = {{Sustainable Energy and Fuels}},
  title        = {{Effect of noble metals on the performance of Ni–Mo catalysts for the hydrodeoxygenation of lignin oils to fuels}},
  url          = {{http://dx.doi.org/10.1039/d5se01014d}},
  doi          = {{10.1039/d5se01014d}},
  volume       = {{9}},
  year         = {{2025}},
}