Production of Syngas by Catalytic Gasification of Biomass at Low Temperature and Synthesis of Clean Transportation Fuels

Keiichi Tomishige, Mohammad Asadullah

Research output: Contribution to journalConference articlepeer-review

1 Citation (Scopus)

Abstract

Hydrogen is one of the most promising candidates for future energy demand. A novel catalyst with high performance and a suitable reactor are necessary for the highly efficient low-temperature process associated with hydrogen production from biomass gasification. Thus, a process for cellulose gasification using the Rh/CeO2/SiO2 catalyst in a continuous-feeding fluidized bed reactor at ≥ 773 K was presented. Carbon conversion (C-conv), as well as selectivity of H2 was improved by the steam addition in the gasification of cellulose on Rh/CeO2/SiO2 catalyst. In the absence of steam, 86% C-conv with a less hydrogen was realized at 773 K, while the 100% C-conv with the higher hydrogen formation was found when the steam with H2O/C = 0.35 was introduced. The formation of hydrogen and CO2 increased with increasing H2O/C ratio. Steam directly took part in the gasification of the tar and char on the highly active catalyst even at low temperatures. The biomass derived tar could be converted to gas on the Ni-based catalysts in the secondary-bed reactor at above 1073 K. However, in the primary-bed reactor, the Ni-based catalysts suddenly deactivated by the carbon deposition and similar phenomenon was observed for G-91.

Original languageEnglish
Pages (from-to)521-523
Number of pages3
JournalACS Division of Fuel Chemistry, Preprints
Volume47
Issue number2
Publication statusPublished - 2002 Aug 1
Externally publishedYes
Event224th ACS National Meeting - Boston, MA, United States
Duration: 2002 Aug 182002 Aug 22

ASJC Scopus subject areas

  • Energy(all)

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