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Biomass gasification via fast pyrolysis

Evert Johannes Leijenhorst (2016)
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.
Please use this url to cite or link to this publication:
author
promoter
UGent and Bert van de Beld
organization
alternative title
Biomassa vergassing via snelle pyrolyse
year
type
dissertation
publication status
published
subject
keyword
Fast Pyrolysis, Gasification, Biomass
pages
XVI, 278 pages
publisher
Ghent University. Faculty of Bioscience Engineering
place of publication
Ghent, Belgium
defense location
Gent : Faculteit Bio-ingenieurswetenschappen (A0.030)
defense date
2016-06-20 15:00
ISBN
9789059898943
language
English
UGent publication?
yes
classification
D1
copyright statement
I have transferred the copyright for this publication to the publisher
id
7248801
handle
http://hdl.handle.net/1854/LU-7248801
date created
2016-06-10 14:37:02
date last changed
2017-01-16 10:51:17
@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},
}

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.