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ávila MiAuthorBriones LAuthorGómez-Pozuelo GAuthorEscola JmAuthorSerrano DpAuthorPeral AAuthorBotas JaCorresponding Author
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Catalytic upgrading of lignin-derived bio-oils over ion-exchanged H-ZSM-5 and H-beta zeolites

Publicated to:Catalysis Today. 427 114419- - 2024-02-01 427(), DOI: 10.1016/j.cattod.2023.114419

Authors: Avila, M I; Alonso-Doncel, M M; Briones, L; Gomez-Pozuelo, G; Escola, J M; Serrano, D P; Peral, A; Botas, J A

Affiliations

Chemical and Environmental Engineering Group, ESCET, Rey Juan Carlos University, c/ Tulipán s/n, Madrid, Móstoles, 28933, Spain - Author
Chemical and Environmental Engineering Group, ESCET, Rey Juan Carlos University, c/ Tulipán s/n, Madrid, Móstoles, 28933, Spain, Thermochemical Processes Unit, IMDEA Energy, Avda. Ramón de la Sagra 3, Madrid, Móstoles, 28935, Spain - Author
Rey Juan Carlos Univ, Chem & Environm Engn Grp, ESCET, C Tulipan S-N, Madrid 28933, Spain - Author
Thermochem Proc Unit, IMDEA Energy, Avda Ramon Sagra 3, Madrid 28935, Spain - Author
Thermochemical Processes Unit, IMDEA Energy, Avda. Ramón de la Sagra 3, Madrid, Móstoles, 28935, Spain - Author
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Abstract

H-ZSM-5 and H-Beta zeolites ion-exchanged with alkali (Na+ and K+) and alkaline-earth (Mg2+) metals have been explored for the catalytic fast pyrolysis of lignin. Incorporating these metals led to a significant change in the acidic properties of the parent zeolites turning into mostly Lewis-type acidity. Catalytic fast pyrolysis experiments of lignin were performed in a fixed bed reactor with ex-situ configuration operating at 550 °C (thermal zone) and 450 °C (catalytic zone), atmospheric pressure and under a nitrogen flow. Moreover, two catalysts to lignin mass ratios (C/L = 0.2 and 0.4) were studied. Compared with non-catalytic tests, the use of parent zeolites caused a decrease in the bio-oil* (water-free basis) yield due to enhanced production of gases, water, and the coke deposition on the catalyst. In addition, the quality of bio-oil* was improved since it presents a lower oxygen content regarding the thermal test. H-Beta zeolite showed a higher deoxygenation degree than H-ZSM-5, but the latter exhibited a higher share of light components in the bio-oil* that can be detected by GC-MS analyses. Both catalysts promoted the production of light oxygenates, aromatics, and oxygenated aromatics. Regarding the effect of the incorporation of metals, oxygenated aromatic compounds were the predominant family in the bio-oil* obtained with all ion-exchanged zeolites. Likewise, significant differences were observed among the catalysts regarding the main components of this family (alkylphenols, guaiacols, syringols, catechols, and methoxybenzenes), achieving guaiacols concentrations in bio-oil* near to 24 wt.% for NaH-ZSM-5 and KH-ZSM-5 catalysts, and alkylphenols concentrations close to 16 wt.% for MgH-Beta and KH-Beta zeolites. © 2023 The Authors

Keywords
alkalibiomassco2 adsorptionconversiondeoxygenationh-zsm-5ion-exchanged zeolitesliquidoxygenated aromaticsphenolsvalorizationzsm-5Fast pyrolysisH-betaH-zsm-5Ion-exchanged zeolitesLignin pyrolysisOxygenated aromatics

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal Catalysis Today due to its progression and the good impact it has achieved in recent years, according to the agency WoS (JCR), it has become a reference in its field. In the year of publication of the work, 2024 there are still no calculated indicators, but in 2023, it was in position 60/178, thus managing to position itself as a Q1 (Primer Cuartil), in the category Chemistry, Physical.

Independientemente del impacto esperado determinado por el canal de difusión, es importante destacar el impacto real observado de la propia aportación.

Según las diferentes agencias de indexación, el número de citas acumuladas por esta publicación hasta la fecha 2025-04-25:

  • WoS: 7
  • Scopus: 7
  • OpenCitations: 7
Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2025-04-25:

  • The use, from an academic perspective evidenced by the Altmetric agency indicator referring to aggregations made by the personal bibliographic manager Mendeley, gives us a total of: 17.
  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 17 (PlumX).

With a more dissemination-oriented intent and targeting more general audiences, we can observe other more global scores such as:

  • The Total Score from Altmetric: 1.85.
  • The number of mentions on the social network X (formerly Twitter): 2 (Altmetric).

It is essential to present evidence supporting full alignment with institutional principles and guidelines on Open Science and the Conservation and Dissemination of Intellectual Heritage. A clear example of this is:

  • The work has been submitted to a journal whose editorial policy allows open Open Access publication.
Leadership analysis of institutional authors

There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: First Author (Ávila Vivas, María Inés) and Last Author (Botas Echevarría, Juan Ángel).

the author responsible for correspondence tasks has been Botas Echevarría, Juan Ángel.