Skip to main content
SpringerLink
Log in

Continuous fast pyrolysis of biomass at high temperature in a fluidized bed reactor

  • Published:
Journal of thermal analysis Aims and scope Submit manuscript

Abstract

In order to perform biomass pyrolysis a continuous fluidized bed reactor (bench scale unit) has been assembled. The influence of experimental conditions such as heating-up time and optimum particle diameter is presented. By feeding the biomass (almond shells) directly into the bubbling bed, pyrolysis has been performed at temperatures ranging from 730° to 930°C at constant feed rate (44 g/h). Remarkable increase of H2 in the product gas is observed when steam rather than an inert carrier such as nitrogen is used thus confirming the potential of this approach.

Zusammenfassung

Zur Durchführung der Pyrolyse von Biomasse wurde ein kontinuierlicher Wirbelschichtreaktor gebaut. Es wird der Einfluß der Versuchsbedingungen wie z.B. Aufheizzeit und optimaler Partikeldurchmesser beschrieben. Wird die Biomasse (Mandelschalen) direkt in die Wirbelschicht eingeleitet, wurde die Pyrolyse bei Temperaturen zwischen 730° und 930°C bei einer konstanten Einspeisegeschwindigkeit von 44 gr/h) durchgeführt. Wird anstelle eines inerten Trägergases (z.B. Stickstoff) Wasserdampf verwendet, kann im Produktegas ein bemerkenswerter Anstieg von H2 verzeichnet werden, was die Leistungsfähigkeit dieser Näherung bestätigt.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. D. S. Scott and J. Piskorz, Can. J. Chem. Eng., 62 (1984) 405.

    Google Scholar 

  2. R. Graham, R. G. Bergougnou and R. P. Overend, J. Anal. Appl. Pyrol., 6 (1984) 363.

    Article  Google Scholar 

  3. L. K. Mok, R. G. Graham, R. P. Overend, B. A. Freel and M. A. Bergougnou, BioEnergy 84; H. Egneus, A. Ellegard, Eds.; Elsevier, London 1985, p. 23.

    Google Scholar 

  4. J. Diebold, Proc. Specialists Workshop on Fast Pyrolysis of Biomass, SERI/CP622-1096, 1980, p. 237.

  5. M. J. Antal, Jr. Adv. Solar Energy., 1 (1983a) 61.

    Google Scholar 

  6. J. L. Kuester, BioEnergy 84; H. Egneus, A. Ellegard, Eds.; Elsevier, London 1885, p. 48.

    Google Scholar 

  7. R. Font, A. Marcilla, J. Devesa and E. Verdu', Ind. Eng. Chem. Res., 27 (1988) 1143.

    Article  Google Scholar 

  8. J. H. Perry, Chemical Engineering Handbook, Mc Graw Hill, 3rd Ed., New York 1973, p. 462.

    Google Scholar 

  9. R. Turton and O. Levenspiel., Fluidization VI Engineering Foundation, New York 1989, p. 669.

  10. S. Rapagna', P. U. Foscolo, E. Tempesti and R. Di Felice Atti CISCI '91, Chianciano Terme 6–11 October 1991, p. 471.

  11. S. Ergun, Chem. Eng. Prog., 48 (1952) 89.

    Google Scholar 

  12. P. U. Foscolo and L. G. Gibilaro, Chem. Eng. Sci., 39 (1984) 1667.

    Article  Google Scholar 

  13. J. F. Richardson and W. N. Zaki, Trans. Inst. Chem. Engrs., 32 (1954) 35.

    Google Scholar 

  14. E. G. Baker, L. K. Mudge, M. D. Brown, Chem. Eng. Prog., 80 (1984) 43.

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Department of Chemistry, Chemical Engineering and Materials, University of L'aquila, 67100, L'aquila, Italy

    S. Rapagna, E. Tempesti, P. U. Foscolo & E. Parodi

  2. Department of Mechanical Engineering, University of Brescia, 25060, Brescia, Italy

    E. Tempesti

  3. Fuel Experimental Station, 20097, Milano, Italy

    E. Parodi

Authors
  1. S. Rapagna
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. E. Tempesti
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. P. U. Foscolo
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. E. Parodi
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

The support of ENEA (Italian Agency for Renewable Energies) is gratefully acknowledged.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Rapagna, S., Tempesti, E., Foscolo, P.U. et al. Continuous fast pyrolysis of biomass at high temperature in a fluidized bed reactor. Journal of Thermal Analysis 38, 2621–2629 (1992). https://doi.org/10.1007/BF01979738

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF01979738

Keywords

Search

Navigation