Cited by 99Lignin and Wood ChemistrySubcritical and Supercritical Water ProcessesThermochemical Biomass Conversion Processes

Catalytic depolymerisation and conversion of Kraft lignin into liquid products using near-critical water

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Nguyen, Thi Dieu Huyen, Maschietti, Marco, Belkheiri, Tallal, Åmand, Lars-Erik, Theliander, Hans, Vamling, Lennart, Olausson, Lars, Andersson, Sven-Ingvar·2014·The Journal of Supercritical Fluids

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Crossref · 10.1016/j.supflu.2013.11.022

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19 of 19 references verified0 citation errors · 0 not checkable

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  • In Nguyen et al. [114], raising the initial K2CO3 concentration from 0.4 wt.% to 2.2 wt.% increased the yield of 1-phenolic compounds from 16.9 wt.% to 27.1 wt.%.

    “Raising the initial K 2 CO 3 concentration from 0.4 wt.% to 2.2 wt.% increased the yield of 1-phenolic compounds from 16.9 wt.% to 27.1 wt.%.”

    From Sub- and Supercritical Water Liquefaction of Kraft Lignin and Black Liquor Derived Lignin (2020) · cites this paper as [114]

    Table 11 (in the Conclusions section) reports that increasing feed K₂CO₃ from 0.4% to 2.2% raised the yield from 16.9% to 27.1% on a dry-lignin basis. But it labels those figures the total yield of 1-ring aromatic compounds, which includes anisoles; they are not specifically the yield of phenolic compounds. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • In Nguyen et al. [114], increasing the initial K2CO3 concentration from 0.4 wt.% to 2.2 wt.% did significantly affect the proportion of suspended solids in the bio-oil fraction, which increased from 0.1 wt.% to 22.9 wt.%.

    “However, increasing the initial K 2 CO 3 concentration from 0.4 wt.% to 2.2 wt.% did significantly affect the proportion of suspended solids in the bio-oil fraction, which increased from 0.1 wt.% to 22.9 wt.%.”
  • In Nguyen et al. [114], the yields of bio-oil, WSO and char were relatively stable as the initial K2CO3 concentration rose from 0.4 wt.% to 2.2 wt.%.

    “The yields of bio-oil, WSO and char were relatively stable as the initial K 2 CO 3 concentration rose from 0.4 wt.% to 2.2 wt.%.”
  • In Nguyen et al. [114], the yields were 69.4-72.2 wt.% for bio-oil, 8.7-10.8 wt.% for WSO, and 17.2-20.7 wt.% for char.

    “The yields were 69.4-72.2wt.% for bio-oil, 8.7-10.8wt.% for WSO, and 17.2-20.7 wt.% for char.”
  • In Nguyen et al. [114], although the elemental composition of the bio-oil did not change significantly with different initial concentrations of K2CO3, the amount of ash in the bio-oil increased from 1.0 wt.% to 3.5 wt.% when the initial concentration of K2CO3 increased from 0.4 wt.% to 2.2 wt.%.

    “Although the elemental composition of the bio-oil did not change significantly with different initial concentrations of K 2 CO 3 , the amount of ash in the bio-oil increased from 1.0 wt.% to 3.5 wt.%, when the initial concentration of K 2 CO 3 increased from 0.4 wt.% to 2.2 wt.%.”

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Research works printed but not linked: 1

  1. [12]12. D. Schmiedl, G. Unkelbach, J. Graf, R. Schweppe, Studies in catalyzed hydro- thermal degradation processes on sulphur-free lignin and extractive separation of aromatic SYNTHONs, in: Second Nordic Wood Biorefinery Conference, 2009, pp. 189-196.

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Authors
Nguyen, T. D. H., Maschietti, M., Belkheiri, T., Åmand, L.-E., Theliander, H., Vamling, L., Olausson, L., & Andersson, S.-I.
Affiliations
  • Chalmers University of Technology (SE)
  • Metso (Sweden) (SE)
Corresponding author
Maschietti, Marco
Venue
The Journal of Supercritical Fluids
Publisher
Elsevier BV
Published
2014-02
Volume
86
Pages
67-75
ISSN
0896-8446 (ISSN-L)
OpenAlex
W1997393803
Cited by
99
References
19
Citations by year
2026: 2 · 2025: 2 · 2024: 2 · 2023: 8 · 2022: 7 · 2021: 10 · 2020: 15 · 2019: 7 · 2018: 15 · 2017: 8 · 2016: 15 · 2015: 4 · 2014: 4
FWCI
4.23
Type
journal article
Language
en
Open access
Locations
  • The Journal of Supercritical Fluids (publishedVersion)
  • Chalmers Research (Chalmers University of Technology) (submittedVersion)
Funders
Energimyndigheten
Topics
  • Physical Sciences › Engineering › Biomedical Engineering › Lignin and Wood Chemistry
  • Physical Sciences › Engineering › Biomedical Engineering › Subcritical and Supercritical Water Processes
  • Physical Sciences › Engineering › Biomedical Engineering › Thermochemical Biomass Conversion Processes
Keywords
kraft lignin, lignin depolymerization, near-critical water, catalytic conversion, bio-oil, zirconia catalysts, potassium carbonate, phenols, fixed-bed reactor, alkylphenols, guaiacol, catechol, anisole, lignin valorization

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