IDEAS home Printed from https://ideas.repec.org/a/eee/renene/v263y2026ics0960148126002636.html

Co-gasification modeling of herbaceous–hardwood biomass mixtures: Influence of equivalence ratio and gasifying agents

Author

Listed:
  • Peethambaran, Sanalkumar Atthanikuzhy
  • Shanmugam, Saravanan Ramiah
  • Basha, Arul Chan
  • Varadarajan, Gunasekar
  • Saady, Noori M. Cata
  • Zendehboudi, Sohrab
  • Sriariyanun, Malinee
  • Venkatachalam, Ponnusami

Abstract

Biomass thermochemical conversion is a promising approach for producing clean and sustainable biofuels. This study develops a detailed downdraft gasification model in Aspen Plus to analyze the gasification performance of three biomasses: Sesamum indicum stalk residue (SR), Oryza sativa husk (RH), and Prosopis juliflora (PJ). The simulated gas composition shows good agreement with experimental data from a 5 kW downdraft gasifier, with a higher heating value (HHV), cold gas efficiency (CGE), and carbon conversion efficiency (CCE) closely matching observed values. Root mean square deviation (RMSD) ranges from 0.99 to 2.12 across tests, validating the simulation models. To align with UN Sustainable Development Goals 7 and 13, the study is extended to co-gasification of the three biomasses using different gasifying agents: air, oxygen-enriched air, and steam. The effects of equivalence ratio (ER) and steam–to–biomass ratio (SB) are investigated. It was found that increasing ER (0.1 to 0.4) and SB (0.05 to 0.75) significantly affects gas composition, HHV, and CGE. A central composite design is employed to analyze variable interactions and optimize conditions. A high PJ content and moderate ER maximize hydrogen enrichment in syngas.

Suggested Citation

  • Peethambaran, Sanalkumar Atthanikuzhy & Shanmugam, Saravanan Ramiah & Basha, Arul Chan & Varadarajan, Gunasekar & Saady, Noori M. Cata & Zendehboudi, Sohrab & Sriariyanun, Malinee & Venkatachalam, Pon, 2026. "Co-gasification modeling of herbaceous–hardwood biomass mixtures: Influence of equivalence ratio and gasifying agents," Renewable Energy, Elsevier, vol. 263(C).
    • Handle: RePEc:eee:renene:v:263:y:2026:i:c:s0960148126002636
    DOI: 10.1016/j.renene.2026.125438
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0960148126002636
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.renene.2026.125438?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to

    for a different version of it.

    More about this item

    Keywords

    ;
    ;
    ;
    ;
    ;

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:renene:v:263:y:2026:i:c:s0960148126002636. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: http://www.journals.elsevier.com/renewable-energy .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.