IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v15y2022i8p2747-d789812.html
   My bibliography  Save this article

Effect of Natural Ilmenite on the Solid Biomass Conversion of Inhomogeneous Fuels in Small-Scale Bubbling Fluidized Beds

Author

Listed:
  • Tanja Schneider

    (Chair of Energy Process Engineering, Department of Chemical and Biological Engineering, Friedrich-Alexander-Universität Erlangen-Nürnberg, Fürther Straße 244f, 90429 Nürnberg, Germany)

  • Dominik Müller

    (Chair of Energy Process Engineering, Department of Chemical and Biological Engineering, Friedrich-Alexander-Universität Erlangen-Nürnberg, Fürther Straße 244f, 90429 Nürnberg, Germany)

  • Jürgen Karl

    (Chair of Energy Process Engineering, Department of Chemical and Biological Engineering, Friedrich-Alexander-Universität Erlangen-Nürnberg, Fürther Straße 244f, 90429 Nürnberg, Germany)

Abstract

The application of oxygen carriers as alternative bed material in fluidized bed combustion originates from chemical lopping processes. They serve as oxygen transport agents undergoing consecutive redox cycles. Thereby, oxygen carriers can provide surplus oxygen in oxygen-lean areas of fluidized bed combustion processes. In turn, re-oxidation takes place in oxygen-rich reactor parts. A more homogeneous combustion and reduced CO emissions follow during steady-state operation. However, especially regarding solid biomass conversion, inhomogeneous fuel qualities result in transient combustion conditions. Therefore, this research deals with the influence of the oxygen carrier ilmenite on solid biomass conversion. Separated batch experiments with methane (volatile), char and wood pellets took place in a laboratory bubbling fluidized bed reactor. They reveal that ilmenite enhances the in-bed CO 2 yield by up to 63% during methane combustion. Batch char experiments confirm that solid–solid reactions with ilmenite are negligible. However, heterogeneous gas–solid reactions reduce the O 2 partial pressure and limit the char conversion rate. The batch wood pellet experiments show that the ilmenite oxygen buffering effect is mitigated due to high local oxygen demand around the pellets and limited pellet distribution in the bed. Finally, the continuous operation in a 100 kW th BFB with inhomogeneous fuel input indicates a higher in-bed fuel conversion and confirms lower CO emissions and less fluctuation in the flue gas during inhomogeneous fuel supply.

Suggested Citation

  • Tanja Schneider & Dominik Müller & Jürgen Karl, 2022. "Effect of Natural Ilmenite on the Solid Biomass Conversion of Inhomogeneous Fuels in Small-Scale Bubbling Fluidized Beds," Energies, MDPI, vol. 15(8), pages 1-21, April.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:8:p:2747-:d:789812
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/15/8/2747/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1996-1073/15/8/2747/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Schneider, T. & Müller, D. & Karl, J., 2020. "A review of thermochemical biomass conversion combined with Stirling engines for the small-scale cogeneration of heat and power," Renewable and Sustainable Energy Reviews, Elsevier, vol. 134(C).
    2. Dominik Müller & Thomas Plankenbühler & Jürgen Karl, 2020. "A Methodology for Measuring the Heat Release Efficiency in Bubbling Fluidised Bed Combustors," Energies, MDPI, vol. 13(10), pages 1-19, May.
    3. Schneider, T. & Moffitt, J. & Volz, N. & Müller, D. & Karl, J., 2022. "Long-term effects of ilmenite on a micro-scale bubbling fluidized bed combined heat and power pilot plant for oxygen carrier aided combustion of wood," Applied Energy, Elsevier, vol. 314(C).
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Ling, Jester Lih Jie & Yang, Won & Park, Han Saem & Lee, Ha Eun & Lee, See Hoon, 2023. "A comparative review on advanced biomass oxygen fuel combustion technologies for carbon capture and storage," Energy, Elsevier, vol. 284(C).

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Anita Konieczna & Kamila Mazur & Adam Koniuszy & Andrzej Gawlik & Igor Sikorski, 2022. "Thermal Energy and Exhaust Emissions of a Gasifier Stove Feeding Pine and Hemp Pellets," Energies, MDPI, vol. 15(24), pages 1-17, December.
    2. Yang, Hang-Suin & Zhu, Hao-Qiang & Xiao, Xian-Zhong, 2023. "Comparison of the dynamic characteristics and performance of beta-type Stirling engines operating with different driving mechanisms," Energy, Elsevier, vol. 275(C).
    3. Montazerinejad, H. & Eicker, U., 2022. "Recent development of heat and power generation using renewable fuels: A comprehensive review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 165(C).
    4. Zhu, Shunmin & Yu, Guoyao & Liang, Kun & Dai, Wei & Luo, Ercang, 2021. "A review of Stirling-engine-based combined heat and power technology," Applied Energy, Elsevier, vol. 294(C).
    5. Ștefan-Dominic Voronca & Monica Siroux & George Darie, 2022. "Experimental Characterization of Transitory Functioning Regimes of a Biomass Stirling Micro-CHP," Energies, MDPI, vol. 15(15), pages 1-23, July.
    6. Chen, Wen-Lih & Sirisha, Vadlakonda & Yu, Chi-Yuan & Wang, Yan-Ru & Dai, Ming-Wei & Lasek, Janusz & Li, Yueh-Heng, 2024. "Design and optimization of a combined heat and power system with a fluidized-bed combustor and stirling engine," Energy, Elsevier, vol. 293(C).
    7. David García & María-José Suárez & Eduardo Blanco & Jesús-Ignacio Prieto, 2022. "Experimental and Numerical Characterisation of a Non-Tubular Stirling Engine Heater for Biomass Applications," Sustainability, MDPI, vol. 14(24), pages 1-17, December.
    8. İncili, Veysel & Karaca Dolgun, Gülşah & Keçebaş, Ali & Ural, Tolga, 2023. "Energy and exergy analyses of a coal-fired micro-CHP system coupled engine as a domestic solution," Energy, Elsevier, vol. 274(C).
    9. Anita Konieczna & Kamil Roman & Witold Rzodkiewicz, 2023. "Fuel Consumption, Emissions of Air Pollutants and Opportunities for Reducing CO 2 Emissions from Linear Sources in the Model Rural Municipality," Energies, MDPI, vol. 16(14), pages 1-16, July.
    10. Xiao, Wang & Chen, Lei & Yu, Guoyao & Ma, Zhuang & Ma, Ying & Xue, Jianhua & Cheng, Yangbin & Luo, Ercang, 2024. "Design and experimental study of a 300 We class combustion-driven high frequency free-piston Stirling electric generator," Energy, Elsevier, vol. 300(C).
    11. Ling, Jester Lih Jie & Yang, Won & Park, Han Saem & Lee, Ha Eun & Lee, See Hoon, 2023. "A comparative review on advanced biomass oxygen fuel combustion technologies for carbon capture and storage," Energy, Elsevier, vol. 284(C).
    12. Xin, Feng & Tang, Bin & Zhao, Bin & Yang, Yanfeng & Liu, Wei & Liu, Zhichun, 2024. "Heat transfer enhancement of a Stirling engine heating tube with three-pronged slant rods under oscillatory flow," Energy, Elsevier, vol. 301(C).
    13. Schneider, T. & Moffitt, J. & Volz, N. & Müller, D. & Karl, J., 2022. "Long-term effects of ilmenite on a micro-scale bubbling fluidized bed combined heat and power pilot plant for oxygen carrier aided combustion of wood," Applied Energy, Elsevier, vol. 314(C).

    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:jeners:v:15:y:2022:i:8:p:2747-:d:789812. 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.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with 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.