Syngas production by biomass gasification using Rh/CeO2/SiO 2 catalysts and fluidized bed reactor

Keiichi Tomishige, Mohammad Asadullah, Kimio Kunimori

Research output: Contribution to journalArticlepeer-review

171 Citations (Scopus)

Abstract

We have been developed novel catalysts for gasification of biomass with much higher energy efficiency than conventional methods (non-catalyst, dolomite, commercial steam reforming Ni catalyst). From the result of the gasification of cellulose over novel Rh/CeO2/SiO2 catalysts, it is found that the gasification process consists of the reforming of tar and the combustion of solid carbon. We also tested novel Rh/CeO2/SiO 2 in the gasification with air, pyrogasification, and steam reforming of cedar wood. As a result, Rh/CeO2/SiO2 gave higher yield of syngas than the conventional steam reforming Ni catalyst. Furthermore, we compared the performance between single and dual bed reactors. Single bed reactor was effective in the gasification of cedar, however, it was not suitable for the gasification of rice straw since a rapid deactivation was observed. Gasification of rice straw, jute stick, baggase using the fluidized dual-bed reactor and Rh/CeO2/SiO2 was also investigated. Especially, the catalyst stability in the gasification of rice straw clearly was enhanced by using the fluidized dual bed reactor.

Original languageEnglish
Pages (from-to)389-403
Number of pages15
JournalCatalysis Today
Volume89
Issue number4
DOIs
Publication statusPublished - 2004 Jun 1
Externally publishedYes

Keywords

  • Biomass
  • Cellulose
  • Cerium oxide
  • Fluidized-bed
  • Gasification
  • Rhodium
  • Synthesis gas

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

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