IDEAS home Printed from https://ideas.repec.org/a/gam/jsusta/v18y2026i8p3952-d1921392.html

Ternary Co-Pyrolysis of Soma Lignite, Sugar Beet Pulp, and Hazelnut Husk: Synergistic Effects, Pseudo-Component Behavior, and Optimal Blend Design

Author

Listed:
  • Kazım Eşber Özbaş

    (Industrial Engineering Department, Faculty of Engineering, Aksaray University, Aksaray 68100, Türkiye)

Abstract

This study investigates the ternary co-pyrolysis behavior of Soma lignite (SL), sugar beet pulp (SBP), and hazelnut husk (HH) at four blending ratios (80:10:10, 60:20:20, 40:30:30, and 20:40:40 wt.%) using thermogravimetric analysis under a nitrogen atmosphere. Synergistic interactions were quantified through mass-based ( Δ W ) and rate-based ( Ψ ) deviation indices, and the contributions of individual pseudo-components were resolved by Gaussian deconvolution of DTG curves. Among the blends investigated, the 40:30:30 (SL:SBP:HH) composition exhibited the most consistent and intense synergistic effect across all temperature zones, with the strongest promotion concentrated in the high-temperature region associated with CaCO 3 mineral decomposition. Deconvolution analysis revealed that increasing the biomass fraction systematically shifted coal-related pseudo-component peaks to lower temperatures and enhanced the hemicellulose/pectin contribution, confirming that biomass-derived volatiles accelerate lignite devolatilization. These findings demonstrate that ternary co-pyrolysis of low-rank coal with two complementary agricultural by-products is a viable and sustainable strategy to enhance pyrolysis performance, valorize agro-industrial waste, and reduce the environmental footprint of lignite utilization, providing fundamental thermochemical data for the design of integrated lignite–biomass co-processing systems.

Suggested Citation

  • Kazım Eşber Özbaş, 2026. "Ternary Co-Pyrolysis of Soma Lignite, Sugar Beet Pulp, and Hazelnut Husk: Synergistic Effects, Pseudo-Component Behavior, and Optimal Blend Design," Sustainability, MDPI, vol. 18(8), pages 1-26, April.
    • Handle: RePEc:gam:jsusta:v:18:y:2026:i:8:p:3952-:d:1921392
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/2071-1050/18/8/3952/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/2071-1050/18/8/3952/
    Download Restriction: no
    ---><---

    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:gam:jsusta:v:18:y:2026:i:8:p:3952-:d:1921392. 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: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    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.