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Characterization and reactivity of soot from fast pyrolysis of lignocellulosic compounds and monolignols

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  • Trubetskaya, Anna
  • Brown, Avery
  • Tompsett, Geoffrey A.
  • Timko, Michael T.
  • Kling, Jens
  • Broström, Markus
  • Andersen, Mogens Larsen
  • Umeki, Kentaro

Abstract

This study presents the effect of lignocellulosic compounds and monolignols on the yield, nanostructure and reactivity of soot generated at 1250 °C in a drop tube furnace. The structure of soot was characterized by electron microscopy techniques, Raman spectroscopy and electron spin resonance spectroscopy. The CO2 reactivity of soot was investigated by thermogravimetric analysis. Soot from cellulose was more reactive than soot produced from extractives, lignin and monolignols. Soot reactivity was correlated with the separation distances between adjacent graphene layers, as measured using transmission electron microscopy. Particle size, free radical concentration, differences in a degree of curvature and multi-core structures influenced the soot reactivity less than the interlayer separation distances. Soot yield was correlated with the lignin content of the feedstock. The selection of the extraction solvent had a strong influence on the soot reactivity. The Soxhlet extraction of softwood and wheat straw lignin soot using methanol decreased the soot reactivity, whereas acetone extraction had only a modest effect.

Suggested Citation

  • Trubetskaya, Anna & Brown, Avery & Tompsett, Geoffrey A. & Timko, Michael T. & Kling, Jens & Broström, Markus & Andersen, Mogens Larsen & Umeki, Kentaro, 2018. "Characterization and reactivity of soot from fast pyrolysis of lignocellulosic compounds and monolignols," Applied Energy, Elsevier, vol. 212(C), pages 1489-1500.
    • Handle: RePEc:eee:appene:v:212:y:2018:i:c:p:1489-1500
    DOI: 10.1016/j.apenergy.2017.12.068
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    References listed on IDEAS

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    1. Trubetskaya, Anna & Jensen, Peter Arendt & Jensen, Anker Degn & Garcia Llamas, Angel David & Umeki, Kentaro & Gardini, Diego & Kling, Jens & Bates, Richard B. & Glarborg, Peter, 2016. "Effects of several types of biomass fuels on the yield, nanostructure and reactivity of soot from fast pyrolysis at high temperatures," Applied Energy, Elsevier, vol. 171(C), pages 468-482.
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    Cited by:

    1. Wu, Shaohua & Lao, Chung Ting & Akroyd, Jethro & Mosbach, Sebastian & Yang, Wenming & Kraft, Markus, 2020. "A joint moment projection method and maximum entropy approach for simulation of soot formation and oxidation in diesel engines," Applied Energy, Elsevier, vol. 258(C).
    2. Chen, Tao & Sjöblom, Jonas & Ström, Henrik, 2022. "Numerical investigations of soot generation during wood-log combustion," Applied Energy, Elsevier, vol. 325(C).
    3. Trubetskaya, Anna & Timko, Michael T & Umeki, Kentaro, 2020. "Prediction of fast pyrolysis products yields using lignocellulosic compounds and ash contents," Applied Energy, Elsevier, vol. 257(C).
    4. Wu, Shaohua & Zhou, Dezhi & Yang, Wenming, 2019. "Implementation of an efficient method of moments for treatment of soot formation and oxidation processes in three-dimensional engine simulations," Applied Energy, Elsevier, vol. 254(C).
    5. He, Qing & Guo, Qinghua & Umeki, Kentaro & Ding, Lu & Wang, Fuchen & Yu, Guangsuo, 2021. "Soot formation during biomass gasification: A critical review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 139(C).

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