An experimental study on biomass air-steam gasification in a fluidized bed

P. M. Lv, Z. H. Xiong, J. Chang, C. Z. Wu, Y. Chen, J. X. Zhu

Research output: Journal PublicationArticlepeer-review

693 Citations (Scopus)

Abstract

The characteristics of biomass air-steam gasification in a fluidized bed are studied in this paper. A series of experiments have been performed to investigate the effects of reactor temperature, steam to biomass ratio (S/B), equivalence ratio (ER) and biomass particle size on gas composition, gas yield, steam decomposition, low heating value (LHV) and carbon conversion efficiency. Over the ranges of the experimental conditions used, the fuel gas yield varied between 1.43 and 2.57 Nm3/kg biomass and the LHV of the fuel gas was between 6741 and 9143 kJ/Nm3. The results showed that higher temperature contributed to more hydrogen production, but too high a temperature lowered gas heating value. The LHV of fuel gas decreased with ER. Compared with biomass air gasification, the introduction of steam improved gas quality. However, excessive steam would lower gasification temperature and so degrade fuel gas quality. It was also shown that a smaller particle was more favorable for higher gas LHV and yield.

Original languageEnglish
Pages (from-to)95-101
Number of pages7
JournalBioresource Technology
Volume95
Issue number1
DOIs
Publication statusPublished - Oct 2004
Externally publishedYes

Keywords

  • Air-steam
  • Biomass
  • Gasification

ASJC Scopus subject areas

  • Bioengineering
  • Environmental Engineering
  • Renewable Energy, Sustainability and the Environment
  • Waste Management and Disposal

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