Highly Selective Alkaline Oxide Promoted Ni/silica for the Production of Cyclohexanol/‐one from Lignin‐Derived Guaiacol
Open accessAbstract
Catalytic hydrodeoxygenation (HDO) is a promising route to upgrade bio‐oils from plants or pyrolysis to basic chemicals. KA‐oil (cyclohexanol/‐one) is an example of a highly valuable feedstock for the industrial synthesis of caprolactam and perlon, which can potentially be produced via a completely sustainable route. This work investigates the alkaline promoter effects on Ni‐based catalysts for the selective HDO of lignin surrogate guaiacol using mesoporous Ni/MgO and co‐impregnated Ni‐MgO/SiO 2 catalysts. Due to preferred demethoxylation by alkaline oxides and their accumulation on nickel corners, responsible for dehydration, conversion, and selectivity for KA‐oil rise. Furthermore, influences of operating parameters are investigated and optimized by design of experiments (DoE), while long‐term stability (24 h) and water resistance remain high. In a final proof of concept, the application of Ni‐CaO/SiO 2 was the most promising material (U=93 %, S=86 %), demonstrating a sustainable route from lignin‐based bio‐oil to produce a bulk commodity for caprolactam synthesis.
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References 45 · Cited by 1
- Authors
- Kretzschmar, N., Busse, O., Roslova, M., Hantusch, M., & Seifert, M.
- Affiliations
- Technische Universität Dresden (DE)
- Leibniz Institute for Solid State and Materials Research (DE)
- Corresponding author
- Seifert, Markus
- Venue
- ChemCatChem
- Publisher
- Wiley
- Published
- 2023-08-17
- Volume
- 15
- Issue
- 18
- ISSN
- 1867-3880 (ISSN-L)
- 1867-3899
- OpenAlex
- W4385065292
- Cited by
- 1
- References
- 45
- Citations by year
- 2025: 1
- FWCI
- 0.08
- Type
- journal article
- Language
- en
- Open access
- hybrid
- doi.org
- Licence
- Locations
- ChemCatChem (publishedVersion, other-oa)
- Qucosa (Saxon State and University Library Dresden) (submittedVersion, cc-by)
- Funders
- Graduiertenakademie, Technische Universität Dresden
- Deutsche Forschungsgemeinschaft (SE2450-/2-1 (no. 507997100)
- Topics
- Physical Sciences › Engineering › Biomedical Engineering › Catalysis for Biomass Conversion
- Physical Sciences › Engineering › Mechanical Engineering › Catalysis and Hydrodesulfurization Studies
- Physical Sciences › Engineering › Biomedical Engineering › Thermochemical Biomass Conversion Processes
- Keywords
- catalytic hydrodeoxygenation, guaiacol, KA oil, nickel catalysts, lignin-derived bio-oil, demethoxylation, caprolactam synthesis, mesoporous catalysts, catalyst stability, water resistance, process optimization
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