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Bubbling fluidized bed biomass gasification—Performance, process findings and energy analysis

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  • Lim, Mook Tzeng
  • Alimuddin, Zainal

Abstract

Bubbling fluidized bed gasifiers (BFG) has potential for rural electrification projects especially in third world countries where biomass supplies are abundant from agricultural, wood industries and where electricity supply from the grid is not available. In this paper the performance of a BFG was observed in terms of its thermal output. Gas chromatography (GC) was used to check the gas composition. The size of the wood chips was irregular but mostly falls in the range of 30mm in both length and width, with the thickness at an average of 3.0mm. It showed that the gas produced had an energy content of 4.74MJ/m3 at a bed temperature of 733°C, with the equivalence ratio at 0.23. The resulting thermal efficiency was 61.32% with a thermal output of 355.55kWth. For village electrification projects, this thermal output is able to supply 100kWe through a diesel generator, enough for electricity consumption in 100 households. An energy balance of the system was done to determine its work potential. It was found that the heat loss was 29.64%. A Shankey diagram of the energy distribution of the BFG system shows that the rest of the thermal output is not utilized and exits the system in the form of char and tarry liquids. Condensates were collected for high-performance liquid chromatograph (HPLC) analysis. It was found that phenol was high when the bed temperature was 450°C, which makes the outlet condensate very soluble in water and can cause water contamination.

Suggested Citation

  • Lim, Mook Tzeng & Alimuddin, Zainal, 2008. "Bubbling fluidized bed biomass gasification—Performance, process findings and energy analysis," Renewable Energy, Elsevier, vol. 33(10), pages 2339-2343.
    • Handle: RePEc:eee:renene:v:33:y:2008:i:10:p:2339-2343
    DOI: 10.1016/j.renene.2008.01.014
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    References listed on IDEAS

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    1. Zhang, Hongmei & Wang, Jun, 2006. "Combustion characteristics of a diesel engine operated with diesel and burning oil of biomass," Renewable Energy, Elsevier, vol. 31(7), pages 1025-1032.
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    1. Loha, Chanchal & Chattopadhyay, Himadri & Chatterjee, Pradip K., 2011. "Thermodynamic analysis of hydrogen rich synthetic gas generation from fluidized bed gasification of rice husk," Energy, Elsevier, vol. 36(7), pages 4063-4071.
    2. Alauddin, Zainal Alimuddin Bin Zainal & Lahijani, Pooya & Mohammadi, Maedeh & Mohamed, Abdul Rahman, 2010. "Gasification of lignocellulosic biomass in fluidized beds for renewable energy development: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 14(9), pages 2852-2862, December.
    3. Neves, Renato Cruz & Klein, Bruno Colling & da Silva, Ricardo Justino & Rezende, Mylene Cristina Alves Ferreira & Funke, Axel & Olivarez-Gómez, Edgardo & Bonomi, Antonio & Maciel-Filho, Rubens, 2020. "A vision on biomass-to-liquids (BTL) thermochemical routes in integrated sugarcane biorefineries for biojet fuel production," Renewable and Sustainable Energy Reviews, Elsevier, vol. 119(C).
    4. P, Ramakrishnan & Singh, Jagadish Kumar & Sahoo, Abanti & Mohapatra, Soumya Sanjeeb, 2023. "CFD simulation for coal gasification in fluidized bed gasifier," Energy, Elsevier, vol. 281(C).
    5. Liu, Zhibin & Zhao, Chuankai & Cai, Longhao & Long, Xinman, 2022. "Steady state modelling of steam-gasification of biomass for H2-rich syngas production," Energy, Elsevier, vol. 238(PA).
    6. Đurišić-Mladenović, Nataša & Škrbić, Biljana D. & Zabaniotou, Anastasia, 2016. "Chemometric interpretation of different biomass gasification processes based on the syngas quality: Assessment of crude glycerol co-gasification with lignocellulosic biomass," Renewable and Sustainable Energy Reviews, Elsevier, vol. 59(C), pages 649-661.
    7. Carlos Vargas-Salgado & Elías Hurtado-Pérez & David Alfonso-Solar & Anders Malmquist, 2021. "Empirical Design, Construction, and Experimental Test of a Small-Scale Bubbling Fluidized Bed Reactor," Sustainability, MDPI, vol. 13(3), pages 1-22, January.
    8. Anis, Samsudin & Zainal, Z.A., 2011. "Tar reduction in biomass producer gas via mechanical, catalytic and thermal methods: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 15(5), pages 2355-2377, June.
    9. Ruivo, Luís & Silva, Tiago & Neves, Daniel & Tarelho, Luís & Frade, Jorge, 2023. "Thermodynamic guidelines for improved operation of iron-based catalysts in gasification of biomass," Energy, Elsevier, vol. 268(C).
    10. W. A. Wan Ab Karim Ghani & Reza Alipour Moghadam & M. A. Mohd Salleh & A. B. Alias, 2009. "Air Gasification of Agricultural Waste in a Fluidized Bed Gasifier: Hydrogen Production Performance," Energies, MDPI, vol. 2(2), pages 1-11, May.
    11. Cordiner, S. & De Simone, G. & Mulone, V., 2012. "Experimental–numerical design of a biomass bubbling fluidized bed gasifier for paper sludge energy recovery," Applied Energy, Elsevier, vol. 97(C), pages 532-542.
    12. Pio, D.T. & Tarelho, L.A.C. & Matos, M.A.A., 2017. "Characteristics of the gas produced during biomass direct gasification in an autothermal pilot-scale bubbling fluidized bed reactor," Energy, Elsevier, vol. 120(C), pages 915-928.
    13. Yoon, Sang Jun & Son, Yung-Il & Kim, Yong-Ku & Lee, Jae-Goo, 2012. "Gasification and power generation characteristics of rice husk and rice husk pellet using a downdraft fixed-bed gasifier," Renewable Energy, Elsevier, vol. 42(C), pages 163-167.
    14. Román-Figueroa, Celián & Montenegro, Nicole & Paneque, Manuel, 2017. "Bioenergy potential from crop residue biomass in Araucania Region of Chile," Renewable Energy, Elsevier, vol. 102(PA), pages 170-177.
    15. Pio, D.T. & Tarelho, L.A.C., 2020. "Empirical and chemical equilibrium modelling for prediction of biomass gasification products in bubbling fluidized beds," Energy, Elsevier, vol. 202(C).
    16. Pio, D.T. & Tarelho, L.A.C. & Pinto, P.C.R., 2020. "Gasification-based biorefinery integration in the pulp and paper industry: A critical review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 133(C).

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