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Experimental study of bottom feed updraft gasifier

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  • Pedroso, Daniel Travieso
  • Machín, Einara Blanco
  • Silveira, Jose Luz
  • Nemoto, Yasuyuki

Abstract

The updraft biomass gasifiers currently available produce a gas with high tar content. For almost all downstream applications a substantial reduction of the tar concentration is required. The gravimetric tar concentration behavior in producer gas, obtained at a modified updraft fixed bed gasifier, was studied. The feedstock feeding system was modified respect to the traditional updraft gasification design in order to decrease the tar concentration in the producer gas; the material is feeding continuously through a conduit in the base of the reactor over the grate. The caloric power of the syngas obtained was slightly lower than the typical value for this type of reactor and the highest efficiency obtained for the woodchip gasification was 77%. The highest tar concentration obtained during the experiments was 1652.7 mg N m−3 during the first our of experiments, comparable with the smaller value reported for the updraft reactors, this value is reduced significantly after the stabilization of the gasification process in the reactor. The smaller value obtained was 21 mg N m−3.

Suggested Citation

  • Pedroso, Daniel Travieso & Machín, Einara Blanco & Silveira, Jose Luz & Nemoto, Yasuyuki, 2013. "Experimental study of bottom feed updraft gasifier," Renewable Energy, Elsevier, vol. 57(C), pages 311-316.
    • Handle: RePEc:eee:renene:v:57:y:2013:i:c:p:311-316
    DOI: 10.1016/j.renene.2013.01.056
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    Cited by:

    1. Machin, Einara Blanco & Pedroso, Daniel Travieso & de Carvalho, João Andrade, 2017. "Energetic valorization of waste tires," Renewable and Sustainable Energy Reviews, Elsevier, vol. 68(P1), pages 306-315.
    2. Pedroso, Daniel Travieso & Machin, Einara Blanco & Proenza Pérez, Nestor & Braga, Lúcia Bollini & Silveira, José Luz, 2017. "Technical assessment of the Biomass Integrated Gasification/Gas Turbine Combined Cycle (BIG/GTCC) incorporation in the sugarcane industry," Renewable Energy, Elsevier, vol. 114(PB), pages 464-479.
    3. Sansaniwal, S.K. & Pal, K. & Rosen, M.A. & Tyagi, S.K., 2017. "Recent advances in the development of biomass gasification technology: A comprehensive review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 72(C), pages 363-384.
    4. Nakamura, Shunsuke & Kitano, Shigeru & Yoshikawa, Kunio, 2016. "Biomass gasification process with the tar removal technologies utilizing bio-oil scrubber and char bed," Applied Energy, Elsevier, vol. 170(C), pages 186-192.
    5. Ismail, T.M. & El-Salam, M. Abd, 2015. "Numerical and experimental studies on updraft gasifier HTAG," Renewable Energy, Elsevier, vol. 78(C), pages 484-497.
    6. Ravaghi-Ardebili, Zohreh & Manenti, Flavio & Corbetta, Michele & Pirola, Carlo & Ranzi, Eliseo, 2015. "Biomass gasification using low-temperature solar-driven steam supply," Renewable Energy, Elsevier, vol. 74(C), pages 671-680.
    7. Manenti, Flavio & Leon-Garzon, Andres R. & Ravaghi-Ardebili, Zohreh & Pirola, Carlo, 2014. "Assessing thermal energy storage technologies of concentrating solar plants for the direct coupling with chemical processes. The case of solar-driven biomass gasification," Energy, Elsevier, vol. 75(C), pages 45-52.
    8. Ravaghi-Ardebili, Zohreh & Manenti, Flavio, 2015. "Unified modeling and feasibility study of novel green pathway of biomass to methanol/dimethylether," Applied Energy, Elsevier, vol. 145(C), pages 278-294.

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