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Two-in-One Fuel Synthetic Bioethanol-Lignin from Lignocellulose with Sewage Sludge and Its Air Pollutants Reduction Effects

Author

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  • Ju-Hyoung Park

    (Clean Fuel Laboratory, Korea Institute of Energy Research (KIER), 71-2, Jang-dong, Yuseong-gu, Daejeon 305-343, Korea
    Department of Chemical & Biological Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Korea
    Ju-Hyoung Park and Min-Ho Jin contributed equally to this work.)

  • Min-Ho Jin

    (Department of Chemical & Biological Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Korea
    Advanced Materials and Devices Laboratory, Korea Institute of Energy Research (KIER), 71-2, Jang-dong, Yuseong-gu, Daejeon 305-343, Korea
    Ju-Hyoung Park and Min-Ho Jin contributed equally to this work.)

  • Young-Joo Lee

    (Clean Fuel Laboratory, Korea Institute of Energy Research (KIER), 71-2, Jang-dong, Yuseong-gu, Daejeon 305-343, Korea)

  • Gyu-Seob Song

    (Clean Fuel Laboratory, Korea Institute of Energy Research (KIER), 71-2, Jang-dong, Yuseong-gu, Daejeon 305-343, Korea)

  • Jong Won Choi

    (Energy Saving Laboratory, Korea Institute of Energy Research (KIER), 71-2, Jang-dong, Yuseong-gu, Daejeon 305-343, Korea)

  • Dong-Wook Lee

    (Advanced Materials and Devices Laboratory, Korea Institute of Energy Research (KIER), 71-2, Jang-dong, Yuseong-gu, Daejeon 305-343, Korea)

  • Young-Chan Choi

    (Clean Fuel Laboratory, Korea Institute of Energy Research (KIER), 71-2, Jang-dong, Yuseong-gu, Daejeon 305-343, Korea)

  • Se-Joon Park

    (Clean Fuel Laboratory, Korea Institute of Energy Research (KIER), 71-2, Jang-dong, Yuseong-gu, Daejeon 305-343, Korea
    Dongwon Heavy Industries Co., Ltd., Jeongoksandan 7-gil, Seosin-myeon, Hwaseong 18554, Korea)

  • Kwang Ho Song

    (Department of Chemical & Biological Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Korea)

  • Joeng-Geun Kim

    (Energy Saving Laboratory, Korea Institute of Energy Research (KIER), 71-2, Jang-dong, Yuseong-gu, Daejeon 305-343, Korea)

Abstract

Developing effective, economical, and environmentally sound approaches for sewage sludge management remains an important global issue. In this paper, we propose a bioethanol-lignin (nonfood biomass)-based sewage sludge upgrading process for enhancing the heating value and reducing air pollutants of hybrid sewage sludge fuel (HSF) for the effective management of sewage sludge. Sewage sludge paste with the lignin-CaO solution implies drying at 105 °C accompanied by torrefaction at 250 °C. During torrefaction, moisture and partly volatile matter begin to evaporate, and are almost vaporized out to the surface. In this study, the proposed process enhances the net caloric value (NCV) to 37%. The lignin-embedded HSF shows a two-in-one combustion peak regardless of the mixing ratio, resulting in a 70% reduction of unburned carbon (UBC) emissions, which is one of the particular matter (PM) sources of combustion flue gas. Other air pollutants, such as CO, hydrocarbon, NO x , and SO x , were also reduced by the proposed process. In particular, SO x emission remained at ~1 ppm (average value) regardless of the sulfur content of the fuel.

Suggested Citation

  • Ju-Hyoung Park & Min-Ho Jin & Young-Joo Lee & Gyu-Seob Song & Jong Won Choi & Dong-Wook Lee & Young-Chan Choi & Se-Joon Park & Kwang Ho Song & Joeng-Geun Kim, 2019. "Two-in-One Fuel Synthetic Bioethanol-Lignin from Lignocellulose with Sewage Sludge and Its Air Pollutants Reduction Effects," Energies, MDPI, vol. 12(16), pages 1-15, August.
  • Handle: RePEc:gam:jeners:v:12:y:2019:i:16:p:3072-:d:256282
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    References listed on IDEAS

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    1. Cao, Yucheng & Pawłowski, Artur, 2012. "Sewage sludge-to-energy approaches based on anaerobic digestion and pyrolysis: Brief overview and energy efficiency assessment," Renewable and Sustainable Energy Reviews, Elsevier, vol. 16(3), pages 1657-1665.
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    5. Folgueras, M.B. & Alonso, M. & Díaz, R.M., 2013. "Influence of sewage sludge treatment on pyrolysis and combustion of dry sludge," Energy, Elsevier, vol. 55(C), pages 426-435.
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