A parametric modelling study for pressurised steam/O2-blown fluidised-bed gasification of wood with catalytic reforming

Ilkka Hannula (Corresponding Author), Esa Kurkela

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41 Citations (Scopus)

Abstract

A model for pressurised steam/O2-blown fluidised-bed gasification of biomass with catalytic reforming of hydrocarbons and tars was developed using Aspen Plus simulation software. Seven main blocks were used to model the fluidised-bed gasifier and two for the catalytic reformer. Modelling blocks were complemented with FORTRAN subroutines to simulate the observed non-equilibrium behaviour of the process. The model was fitted with experimental data derived from a 0.5 MW scale test rig operated with crushed wood pellets and forest residues and was shown to be capable of predicting product gas composition from gasification of clean wood. A parametric analysis indicated that a significant improvement in the syngas efficiency could be achieved by rising the filtration temperature and reformer conversions. Other improvement possibilities include fuel drying and lower reforming temperature.
Original languageEnglish
Pages (from-to)58-67
Number of pages10
JournalBiomass and Bioenergy
Volume38
DOIs
Publication statusPublished - 2011
MoE publication typeA1 Journal article-refereed

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Keywords

  • Gasification
  • model
  • biomass
  • oxygen
  • catalytic reforming

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