Fast pyrolysis of an ensemble of biomass particles in a fluidized bed

A combined approach to the modeling of fast pyrolysis of biomass particles in a fluidized bed has been used. We used models of different levels: two models of pyrolysis of a single particle — with lumped and distributed parameters — and a model of pyrolysis of an ensemble of biomass particles based on the continuum equations for the gas blown through the bed and the equations of motion for individual particles. We have determined optimal (in terms of the biofuel yield) temperatures of the process for various particle sizes of wood biomass and various values of its moisture.

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  1. 1.

    D. A. Laird, R. C. Brown, J. E. Amonette, and J. Lehmann, Review of the pyrolysis platform for coproducing bio-oil and biochar, Biofuels, Bioprod. Bioref., 3, 547–562 (2009).

    Article  Google Scholar 

  2. 2.

    D. Mohan, Ch. U. Pittman Jr., and Ph. H. Steele, Pyrolysis of wood/biomass for bio-oil: A critical review, Energy Fuels, 20, 848–889 (2006).

    Article  Google Scholar 

  3. 3.

    I. Ph. Boukis, P. Grammelis, S. Bezergianni, and A. V. Bridgwater, CFB air-blown flash pyrolysis. Part I: Engineering design and cold model performance, Fuel, 86, 1372–1386 (2007).

    Google Scholar 

  4. 4.

    I. Ph. Boukis, S. Bezergianni, P. Grammelis, and A. V. Bridgwater, CFB air-blown flash pyrolysis. Part II: Operation and experimental results, Fuel, 86, 1387–1395 (2007).

    Article  Google Scholar 

  5. 5.

    J. Yanik, C. Kornmayer, M. Saglam, and M. Yuksel, Fast pyrolysis of agricultural wastes: Characterization of pyrolysis products, Fuel Process. Technol., 88, 942–947 (2007).

    Article  Google Scholar 

  6. 6.

    P. Basu and P. Kaushal, Modeling of pyrolysis and gasification in fluidized beds, Chem. Prod. Process Model., 4, Issue 1, Art. 21 (2009).

  7. 7.

    K. Papadikis, A. V. Bridgwater, and S. Gu, CFD modelling of the fast pyrolysis of biomass in fluidized bed reactors. Part A: Eulerian computation of momentum transport in bubbling fluidised beds, Chem. Eng. Sci., 63, Issue 16, 4218–4227 (2008).

    Article  Google Scholar 

  8. 8.

    K. Papadikis, S. Gu, and A. V. Bridgwater, CFD modelling of the fast pyrolysis of biomass in fluidized bed reactors. Part B: Heat, momentum, and mass transport in bubbling fluidized beds, Chem. Eng. Sci., 64, Issue 5, 1036–1045 (2009).

    Article  Google Scholar 

  9. 9.

    K. Papadikis, S. Gu, and A. V. Bridgwater, Computational modelling of the impact of particle size to the heat transfer coefficient between biomass particles and a fluidized bed, Fuel Process. Technol., 91, Issue 1, 68–79 (2010).

    Article  Google Scholar 

  10. 10.

    O. S. Rabinovich, V. V. Korban, G. I. Pal’chenok, and O. P. Khorol’skaya, Modeling of fast pyrolysis of a single biomass particle in an inert boiling bed, Inzh.-Fiz. Zh., 82, No. 4, 621–631 (2009).

    Google Scholar 

  11. 11.

    R. S. Miller and J. Bellan, A generalized biomass pyrolysis model based on superimposed cellulose, hemicellulose and lignin kinetics, Combust. Sci. Technol., 126, 97–137 (1997).

    Article  Google Scholar 

  12. 12.

    Y. Tsuji, T. Kawaguchi, and T. Tanaka, Discrete particle simulation of two-dimensional fluidized bed, Powder Technol., 77, 79–87 (1993).

    Article  Google Scholar 

  13. 13.

    M. Syamlal, W. Rogers, and T. O’Brien, MFIX Documentation Theory Guide, U.S. Department of Energy (1993).

  14. 14.

    P. A. Cundall and O. D. Strack, A discrete numerical model for granular assemblies, Geotechnique, 291, 47–65 (1979).

    Google Scholar 

  15. 15.

    T. B. Anderson and R. Jackson, A fluid mechanical description of fluidized beds, Industr. Eng. Chem. Fundam., 6, 527–539 (1967).

    Article  Google Scholar 

  16. 16.

    B. P. B. Hoomans, J. A. M. Kuipers, W. J. Briels, and W. P. M. V. Swaaij, Discrete particle simulation of bubble and slug formation in a two-dimensional gas-fluidized bed: a hard sphere approach, Chem. Eng. Sci., 51, No. 1, 99–118 (1996).

    Article  Google Scholar 

  17. 17.

    D. Kunii and O. Levenshpiel, Fluidization Engineering [Russian translation], Khimiya, Moscow (1976).

    Google Scholar 

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Correspondence to O. S. Rabinovich.

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Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 83, No. 4, pp. 694–704, July–August, 2010.

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Rabinovich, O.S., Borodulya, V.A., Vinogradov, L.M. et al. Fast pyrolysis of an ensemble of biomass particles in a fluidized bed. J Eng Phys Thermophy 83, 742–752 (2010).

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  • fast pyrolysis
  • biomass
  • biofuel
  • pyrolysis kinetics
  • fluidized bed
  • computational hydrodynamics