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Biomass gasification via fast pyrolysis

(2016)
Author
Promoter
(UGent) and Bert van de Beld
Organization
Abstract
Fast pyrolysis is the thermal degradation of biomass, by rapid heating of small particles in the absence of oxygen. The products obtained are permanent gas, condensable vapours and char. Experiments for 16 different biomass materials have shown that over 95% of the inorganic elements originally present in the biomass, are retained in the char. The absence of minerals in the gases and vapour, and also in the pyrolysis-oil that is obtained upon condensation, makes these product streams attractive as fuel for gasification. Three systems for biomass gasification via fast pyrolysis have been evaluated. The first system is a directly coupled system, where the pyrolysis gases and vapours are partially oxidized (gasified) immediately after they are generated. By applying a dedicated catalyst, a virtually tar free gas suitable for heat and/or power generation can be produced. In a second system pyrolysis oil has been gasified in an autothermal catalytic reformer (7 kW). The third system considered was a pilot scale entrained flow gasifier (400 kW). Both systems were used to demonstrate the production of syngas, suitable for subsequent production of fuels and chemicals, from pyrolysis oil. Theoretical modelling of all three systems has been carried out as well, in order to estimate the optimal product yields for each of them, and to show that high overall efficiencies can be achieved.
Keywords
Fast Pyrolysis, Gasification, Biomass

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Citation

Please use this url to cite or link to this publication:

Chicago
Leijenhorst, Evert Johannes. 2016. “Biomass Gasification via Fast Pyrolysis”. Ghent, Belgium: Ghent University. Faculty of Bioscience Engineering.
APA
Leijenhorst, E. J. (2016). Biomass gasification via fast pyrolysis. Ghent University. Faculty of Bioscience Engineering, Ghent, Belgium.
Vancouver
1.
Leijenhorst EJ. Biomass gasification via fast pyrolysis. [Ghent, Belgium]: Ghent University. Faculty of Bioscience Engineering; 2016.
MLA
Leijenhorst, Evert Johannes. “Biomass Gasification via Fast Pyrolysis.” 2016 : n. pag. Print.
@phdthesis{7248801,
  abstract     = {Fast pyrolysis is the thermal degradation of biomass, by rapid heating of small particles in the absence of oxygen. The products obtained are permanent gas, condensable vapours and char. Experiments for 16 different biomass materials have shown that over 95\% of the inorganic elements originally present in the biomass, are retained in the char. The absence of minerals in the gases and vapour, and also in the pyrolysis-oil that is obtained upon condensation, makes these product streams attractive as fuel for gasification.
Three systems for biomass gasification via fast pyrolysis have been evaluated. The first system is a directly coupled system, where the pyrolysis gases and vapours are partially oxidized (gasified) immediately after they are generated. By applying a dedicated catalyst, a virtually tar free gas suitable for heat and/or power generation can be produced. In a second system pyrolysis oil has been gasified in an autothermal catalytic reformer (7 kW). The third system considered was a pilot scale entrained flow gasifier (400 kW). Both systems were used to demonstrate the production of syngas, suitable for subsequent production of fuels and chemicals, from pyrolysis oil. 
Theoretical modelling of all three systems has been carried out as well, in order to estimate the optimal product yields for each of them, and to show that high overall efficiencies can be achieved.},
  author       = {Leijenhorst, Evert Johannes},
  isbn         = {9789059898943},
  keyword      = {Fast Pyrolysis,Gasification,Biomass},
  language     = {eng},
  pages        = {XVI, 278},
  publisher    = {Ghent University. Faculty of Bioscience Engineering},
  school       = {Ghent University},
  title        = {Biomass gasification via fast pyrolysis},
  year         = {2016},
}