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Gasification characteristics of biomass for tar removal by secondary oxidant injection

  • Se-Won Park
  • Jang-Soo Lee
  • Won-Seok Yang
  • Md Tanvir Alam
  • Yong-Chil Seo
  • Sang-Yeop Lee
ORIGINAL ARTICLE
  • 138 Downloads

Abstract

Gasification experiments for sawdust were conducted using a fixed bed reactor at 900 °C by varying the secondary oxidant injection ratio to determine the optimal conditions for tar removal along with the enhancement of gasification efficiency. Secondary oxidant was injected as an oxidant at the top zone of the gasifier in varying ratios of 10–30% of the total amount of oxidant. This method was based on the primary method of tar removal and gasification efficiency improvement by thermal cracking of tar. Various gasification performance parameters were evaluated and tar content was estimated by measuring the fluctuation of weight of the activated carbon filter. The results showed that the concentration of tar in the producer gas decreased by injecting the secondary oxidant, even though syngas yield decreased. The recycling potential of the char produced in the gasification experiments was also assessed with the purpose of utilizing char as an adsorbent by determining its surface area and pore volume. The results demonstrated that the char produced from the gasification experiment had similar quality to that of the activated carbon used in this experiment.

Keywords

Gasification Biomass Secondary oxidant Tar Thermal cracking 

Notes

Acknowledgements

This subject is supported by the Korea Ministry of Environment (MOE) as a “Waste-to-Energy Technology Development Project” and a grant from the Human Resources Development program (No. 20164030201250) of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) funded by the Korean Ministry of Trade, Industry and Energy.

References

  1. 1.
    Dong JI (2008) Waste eco-energy and GHGs reduction technologies in the era of climate change. J Korea Soc Environ Eng 30(12):1203–1206Google Scholar
  2. 2.
    Butterman HC, Castaldi MJ (2009) CO2 as a carbon neutral fuel source via enhanced biomass gasification. Environ Sci Technol 43(23):9030–9037CrossRefGoogle Scholar
  3. 3.
    Demirbaş A (2001) Biomass resource facilities and biomass conversion processing for fuels and chemicals. Energy Convers Manag 42(11):1357–1378CrossRefGoogle Scholar
  4. 4.
    Gil J, Corella J, Aznar MP, Caballero MA (1999) Biomass gasification in atmospheric and bubbling fluidized bed: effect of the type of gasifying agent on the product distribution. Biomass Bioenergy 17(5):389–403CrossRefGoogle Scholar
  5. 5.
    Breault RW (2010) Gasification processes old and new: a basic review of the major technologies. Energies 3(2):216–240CrossRefGoogle Scholar
  6. 6.
    Li C, Suzuki K (2009) Tar property, analysis, reforming mechanism, and model for biomass gasification—an overview. Renew Sustain Energy Rev 13(3):594–604CrossRefGoogle Scholar
  7. 7.
    Kim SW, Koo BS, Ryu JW, Lee JS, Kim CJ, Lee DH, Choi S (2013) Bio-oil from the pyrolysis of palm and Jatropha wastes in a fluidized bed. Fuel Process Technol 108:118–124. doi: 10.1016/j.fuproc.2012.05.002 CrossRefGoogle Scholar
  8. 8.
    Anis S, Zainal ZA (2011) Tar reduction in biomass producer gas via mechanical, catalytic and thermal methods: a review. Renew Sustain Energy Rev 15(5):2355–2377CrossRefGoogle Scholar
  9. 9.
    Machin EB, Pedroso DT, Proenza N, Silveira JL, Conti L, Braga LB, Machin AB (2015) Tar reduction in downdraft biomass gasifier using a primary method. Renew Energy 78:478–483. doi: 10.1016/j.renene.2014.12.069 CrossRefGoogle Scholar
  10. 10.
    Chen C, Horio M, Kojima T (2001) Use of numerical modeling in the design and scale-up of entrained flow coal gasifiers. Fuel 80(10):1513–1523CrossRefGoogle Scholar
  11. 11.
    Kumar M, Ghoniem AF (2011) Multiphysics simulations of entrained flow gasification. Part II: constructing and validating the overall model. Energy Fuels 26(1):464–479CrossRefGoogle Scholar
  12. 12.
    Fletcher DF, Haynes BS, Chen J, Joseph SD (1998) Computational fluid dynamics modelling of an entrained flow biomass gasifier. Appl Math Model 22(10):747–757CrossRefGoogle Scholar
  13. 13.
    Fagbemi L, Khezami L, Capart R (2001) Pyrolysis products from different biomasses: application to the thermal cracking of tar. Appl Energy 69(4):293–306CrossRefGoogle Scholar
  14. 14.
    Yang WS, Seo YC, Lee JS, Yoo HM, Park JK, Park SW, Cha R, Cho SJ (2013) A study on characteristics of sawdust in a fixed bed reactor. J Korea Soc Waste Manag 30(2):124–129. doi: 10.9786/kswm.2013.30.2.124 CrossRefGoogle Scholar
  15. 15.
    Kim BH, Kang M (2004) Characteristics of chlorobenzene adsorption on oxidative treated activated carbon. J Korea Soc Waste Manag 21(43):319–327Google Scholar
  16. 16.
    Gong Z, Alef K, Wilke BM, Li P (2007) Activated carbon adsorption of PAHs from vegetable oil used in soil remediation. J Hazard Mater 143(1):372–378CrossRefGoogle Scholar
  17. 17.
    Park SW, Seo YC, Lee JS, Yoo HM, Yang WS, Kang JJ (2016) Characteristics of tar generated from palm empty fruit bunch gasification. J Korea Soc Waste Manag 33(4):410–417. doi: 10.9786/kswm.2016.33.4.410 CrossRefGoogle Scholar
  18. 18.
    Yang WS, Lee JS, Park SW, Kang JJ, Alam T, Seo YC (2016) Gasification applicability study of polyurethane solid refuse fuel fabricated from electric waste by measuring syngas and nitrogenous pollutant gases. J Mater Cycles Waste Manag 18:509–516CrossRefGoogle Scholar
  19. 19.
    Sheth PN, Babu BV (2009) Experimental studies on product gas generation from wood waste in a downdraft biomass gasifier. Bioresour Technol 100(12):3127–3133. doi: 10.1016/j.biortech.2009.01.024 CrossRefGoogle Scholar
  20. 20.
    Dogru M, Howarth CR, Akay G, Keskinler B, Malik AA (2002) Gasification of hazelnut shells in a downdraft gasifier. Energy 27(5):415–427. doi: 10.1016/S0360-5442(01)00094-9 CrossRefGoogle Scholar
  21. 21.
    Zainal ZA, Rifau A, Quadir GA, Seetharamu KN (2002) Experimental investigation of a downdraft biomass gasifier. Biomass Bioenergy 23(4):283–289CrossRefGoogle Scholar
  22. 22.
    Paethanom A, Nakahara S, Kobayashi M, Prawisudha P, Yoshikawa K (2012) Performance of tar removal by absorption and adsorption for biomass gasification. Fuel Process Technol 104:144–154CrossRefGoogle Scholar
  23. 23.
    Han J, Wang X, Yue J, Gao S, Xu G (2014) Catalytic upgrading of coal pyrolysis tar over char-based catalysts. Fuel Process Technol 122:98–106CrossRefGoogle Scholar
  24. 24.
    Tsuboi Y, Ito S, Takafuji M, Ohara H, Fujimori T (2017) Development of a regenerative reformer for tar-free syngas production in a steam gasification process. Appl Energy 185:1217–1224CrossRefGoogle Scholar
  25. 25.
    Tao J, Dong C, Lu Q, Liao H, Du X, Yang Y, Dahlquist E (2015) Catalytic cracking of biomass high-temperature pyrolysis tar using NiO/AC catalysts. Int J Green Energy 12(8):773–779CrossRefGoogle Scholar
  26. 26.
    Gómez-Barea A, Ollero P, Leckner B (2013) Optimization of char and tar conversion in fluidized bed biomass gasifiers. Fuel 103:42–52CrossRefGoogle Scholar
  27. 27.
    Raveendran K, Ganesh A (1998) Adsorption characteristics and pore-development of biomass-pyrolysis char. Fuel 77(7):769–781CrossRefGoogle Scholar

Copyright information

© Springer Japan KK 2017

Authors and Affiliations

  1. 1.Department of Environmental EngineeringYonsei UniversityWonjuSouth Korea

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