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Grant support

The authors gratefully acknowledge financial support from the Spanish Ministry of Economy and Competitiveness (projects PID2020-117273RB-I00 and TED2021-131499B-I00). This work was also supported by Portuguese funds through FCT/MCTES (PIDDAC): LEPABE UIDB/00511/2020 (DOI: 10.54499/UIDB/00511/2020) and UIDP/00511/2020 (DOI: 10.54499/UIDP/00511/2020) and ALiCE LA/P/0045/2020 (DOI: 10.54499/LA/P/0045/2020).

Analysis of institutional authors

Megia, Pedro JCorresponding AuthorVizcaino, Arturo JAuthorCarrero, AliciaAuthorCalles, Jose AAuthor

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January 25, 2025
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Article
Hybrid Gold

Thermodynamic Comparison between Conventional, Autothermal, and Sorption-Enhanced Bio-oil Steam Reforming

Publicated to:Energy & Fuels. 39 (3): 1652-1667 - 2025-01-10 39(3), DOI: 10.1021/acs.energyfuels.4c05035

Authors: Megia, Pedro J; Rocha, Claudio; Vizcaino, Arturo J; Carrero, Alicia; Calles, Jose A; Madeira, Luis M; Soria, Miguel A

Affiliations

Rey Juan Carlos Univ, Chem & Environm Engn Grp, Mostoles 28933, Spain - Author
Rey Juan Carlos Univ, Inst Sustainable Technol, Mostoles 28933, Spain - Author
Univ Porto, Fac Engn, ALiCE Assoc Lab Chem Engn, P-4200465 Porto, Portugal - Author
Univ Porto, Fac Engn, LEPABE Lab Proc Engn Environm Biotechnol & Energy, P-4200465 Porto, Portugal - Author

Abstract

This study presents a comprehensive thermodynamic analysis comparing three bio-oil steam reforming processes: traditional steam reforming, autothermal reforming, and sorption-enhanced steam reforming. Using Aspen Plus V12.1 software, simulations were performed to evaluate the hydrogen production, energy requirements, and influence of key process variables such as the temperature, pressure, or steam-to-carbon ratio. While traditional steam reforming is capable of achieving high hydrogen production, it requires substantial external energy input to drive forward the reaction, given the endothermic nature of the reactions. In comparison, autothermal reforming allows thermally neutral conditions by integrating endothermic steam reforming with exothermic partial oxidation reactions. Although the energy requirements significantly decrease, it also leads to lower hydrogen yields due to its consumption in the oxidation processes. In contrast, sorption-enhanced steam reforming improves hydrogen production compared to the other configurations ascribed to the in situ CO2 capture by using sorbents that shift the equilibrium toward hydrogen with purities over 98%, thus minimizing the need for additional gas separation processes apart from reducing the CO and CH4 formation. Additionally, the exothermic nature of the CO2 capture reactions contributes to reducing the energy requirements or even generates excess energy at certain conditions that can be used as a heat source. The bio-oil composition showed minor variations in hydrogen yields, making these findings applicable to different bio-oil compositions.

Keywords

Biomass pyrolysisEthanoHydrogen-production

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal Energy & Fuels 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, 2025, it was in position 69/171, thus managing to position itself as a Q1 (Primer Cuartil), in the category Energy & Fuels.

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 2025-07-16:

  • 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: 7 (PlumX).

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

This work has been carried out with international collaboration, specifically with researchers from: Portugal.

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 (Megía Hervás, Pedro Julio) .

the author responsible for correspondence tasks has been Megía Hervás, Pedro Julio.