Low-temperature catalytic gasification of lignin and cellulose with a ruthenium catalyst in supercritical water

Mitsumasa Osada, Takafumi Sato, Masaru Watanabe, Tadafumi Adschiri, Kunio Arai

Research output: Contribution to journalArticlepeer-review

186 Citations (Scopus)

Abstract

Lignin and cellulose were gasified at 400 °C with gas yields of 30% and 70%, respectively, in supercritical water with a ruthenium catalyst. In both cases, the main gas product was CH4 and no solid product was formed. Without water or catalyst, lignin and cellulose were gasified slightly and a brown solid product was formed. The decomposition of formaldehyde was also demonstrated in supercritical water. Formaldehyde was rapidly decomposed to gases such as CH4, CO2, and H2 with ruthenium, whereas formaldehyde was converted into methanol and CO2 without catalyst. The catalytic conversion of biomass with ruthenium in supercritical water is an efficient method for biomass gasification at temperatures of ∼400 °C.

Original languageEnglish
Pages (from-to)327-333
Number of pages7
JournalEnergy and Fuels
Volume18
Issue number2
DOIs
Publication statusPublished - 2004 Mar 1

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Fuel Technology
  • Energy Engineering and Power Technology

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