Catalytic performance of supported Ni catalysts in partial oxidation and steam reforming of tar derived from the pyrolysis of wood biomass

Tomohisa Miyazawa, Takeo Kimura, Jin Nishikawa, Shigeru Kado, Kimio Kunimori, Keiichi Tomishige

Research output: Contribution to journalArticlepeer-review

172 Citations (Scopus)

Abstract

Activity test of Ni/Al2O3, Ni/ZrO2, Ni/TiO2, Ni/CeO2 and Ni/MgO catalysts in the partial oxidation (POT) and steam reforming of tar (SRT) derived from the pyrolysis of cedar wood was performed. In these activity tests, the order of the performance in both reactions was similar. Catalyst characterization was also carried out by means of H2 adsorption, TPR and XRD. From the combination of catalyst characterization with the results of the activity tests, it is suggested that the conversion of tar in POT and SRT is mainly controlled by the number of surface Ni metal. In addition, Ni/CeO2 showed smaller amount of coke than other catalysts in the POT and SRT. From the TGA profiles of active carbon mixed with catalysts, it is found that Ni/CeO2 promoted the reaction of active carbon with O2 and steam. The function of the fluidized bed reactor in the POT with respect to coke and tar amount was discussed.

Original languageEnglish
Pages (from-to)254-262
Number of pages9
JournalCatalysis Today
Volume115
Issue number1-4
DOIs
Publication statusPublished - 2006 Jun 30
Externally publishedYes

Keywords

  • Biomass
  • Combustion
  • Fluidized bed reactor
  • Ni
  • Partial oxidation
  • Steam reforming
  • Tar

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

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