Modelling and optimisation of biomass fluidised bed gasifier

Rex T. L. Ng, Douglas H. S. Tay, Wan Azlina Wan Ab Karim Ghani, Denny K. S. Ng

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Recently, biomass for bioenergy and biofuel via gasification has become of great interest to energy and fuels production. Besides, gasification is recognised as a promising first processing step in an integrated biorefinery due to green and renewable technology. In this work, a stoichiometric equilibrium model of biomass fluidised bed gasifier is developed and followed by model improvement includes a correction factor to the equilibrium constants with a function of temperature. To illustrate the proposed model, bagasse is taken as the feedstock and gasification modelling based on the experiment result of a fluidised bed gasifier is presented. To ensure the accuracy of the model, predicted syngas compositions are validated with the experimental results. Besides, the proposed model is also reformulated for different types of biomass feedstock (e.g., rice husk, coconut shell, etc.). Based on the developed models, the operating condition of the gasifier can be optimised and the composition of the syngas can also be determined.

Original languageEnglish
Pages (from-to)98-105
Number of pages8
JournalApplied Thermal Engineering
Volume61
Issue number1
DOIs
Publication statusPublished - 15 Oct 2013

Keywords

  • Biomass
  • Biorefinery
  • Gasification
  • Modelling
  • Optimisation

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Industrial and Manufacturing Engineering

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