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Analysis of Porous Structure Parameters of Biomass Chars Versus Bituminous Coal and Lignite Carbonized at High Pressure and Temperature—A Chemometric Study

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  • Adam Smoliński

    (Department of Energy Saving and Air Protection, Central Mining Institute, Pl. Gwarków 1, 40-166 Katowice, Poland)

  • Natalia Howaniec

    (Department of Energy Saving and Air Protection, Central Mining Institute, Pl. Gwarków 1, 40-166 Katowice, Poland)

Abstract

The characteristics of the porous structure of carbonized materials affect their physical properties, such as density or strength, their sorption capacity, and their reactivity in thermochemical processing, determining both their applicability as fuels or sorbents and their efficiency in various processes. The porous structure of chars is shaped by the combined effects of physical and chemical properties of a carbonaceous material and the operating parameters applied in the carbonization process. In the study presented, the experimental dataset covering parameters of various fuels, ranging from biomass through lignite to bituminous coal, and chars produced at 1273 K and under the pressure of 1, 2, 3, and 4 MPa was analyzed with the application of the advanced method of data exploration. The principal component analysis showed that the sample of the highest coal rank was characterized by lower values of parameters reflecting the development of the porous structure of chars. A negative correlation was also observed between the carbon content in a fuel and the evolution of the porous structure of chars at high pressure. The highest total pore volume of chars produced under 1 and 3 MPa and the highest micropore surface area under 3 MPa were reported for a carbonized fuel sample of the highest moisture content.

Suggested Citation

  • Adam Smoliński & Natalia Howaniec, 2017. "Analysis of Porous Structure Parameters of Biomass Chars Versus Bituminous Coal and Lignite Carbonized at High Pressure and Temperature—A Chemometric Study," Energies, MDPI, vol. 10(10), pages 1-10, September.
    • Handle: RePEc:gam:jeners:v:10:y:2017:i:10:p:1457-:d:112703
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    References listed on IDEAS

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    1. Smoliński, A. & Howaniec, N. & Stańczyk, K., 2011. "A comparative experimental study of biomass, lignite and hard coal steam gasification," Renewable Energy, Elsevier, vol. 36(6), pages 1836-1842.
    2. Tremel, Alexander & Haselsteiner, Thomas & Nakonz, Mario & Spliethoff, Hartmut, 2012. "Coal and char properties in high temperature entrained flow gasification," Energy, Elsevier, vol. 45(1), pages 176-182.
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    Cited by:

    1. Janusz Zdeb & Natalia Howaniec, 2022. "Energy Sector Derived Combustion Products Utilization—Current Advances in Carbon Dioxide Mineralization," Energies, MDPI, vol. 15(23), pages 1-28, November.
    2. Smoliński, Adam & Howaniec, Natalia, 2023. "Experimental investigation and chemometric analysis of gasification and co-gasification of olive pomace and Sida Hermaphrodita blends with sewage sludge to hydrogen-rich gas," Energy, Elsevier, vol. 284(C).
    3. Laifu Zhao & Qian Du & Jianmin Gao & Shaohua Wu, 2019. "Contribution of Minerals in Different Occurrence Forms to PM 10 Emissions during the Combustion of Pulverized Zhundong Coal," Energies, MDPI, vol. 12(19), pages 1-14, September.
    4. Kumar N, Sasi & Grekov, Denys & Pré, Pascaline & Alappat, Babu J., 2020. "Microwave mode of heating in the preparation of porous carbon materials for adsorption and energy storage applications – An overview," Renewable and Sustainable Energy Reviews, Elsevier, vol. 124(C).
    5. Zdeb, Janusz & Howaniec, Natalia & Smoliński, Adam, 2023. "Experimental study on combined valorization of bituminous coal derived fluidized bed fly ash and carbon dioxide from energy sector," Energy, Elsevier, vol. 265(C).

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