Catalytic steam gasification of cellulose using reactive flash volatilization

Fan Liang Chan, Akshat Tanksale

Research output: Contribution to journalArticleResearchpeer-review

Abstract

Biomass gasification is considered to be one of the most promising technologies to deliver renewable energy. However, tar formation in the gasifier is one of the main challenges. Ni-based catalysts are one of the most effective transition-metal catalysts in biomass gasification for tar cracking and reforming. Alumina-supported Ni, Pt-Ni, Ru-Ni, Re-Ni and Rh-Ni catalysts were tested for their activity in the reactive flash volatilisation (RFV) of cellulose to produce synthesis gas in 50ms reaction time. RFV is a catalytic gasification process that utilises a high carbon space velocity and mass flow rate with oxygen and steam as gasification agents. Re-Ni, Rh-Ni and Ru-Ni supported catalysts showed a higher gasification efficiency than the other catalysts, which was because of their higher metal surface area, high reducibility and lower CO desorption temperature. The highest gasification efficiency was achieved at 750C with a carbon-to-oxygen ratio of 0.6 and a carbon-to-steam ratio of 1.0 without any oxygen breakthrough.

Original languageEnglish
Pages (from-to)2727-2739
Number of pages13
JournalChemCatChem
Volume6
Issue number9
DOIs
Publication statusPublished - 2014

Keywords

  • biomass
  • nickel
  • platinum
  • rhenium
  • supported catalysts

Cite this

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title = "Catalytic steam gasification of cellulose using reactive flash volatilization",
abstract = "Biomass gasification is considered to be one of the most promising technologies to deliver renewable energy. However, tar formation in the gasifier is one of the main challenges. Ni-based catalysts are one of the most effective transition-metal catalysts in biomass gasification for tar cracking and reforming. Alumina-supported Ni, Pt-Ni, Ru-Ni, Re-Ni and Rh-Ni catalysts were tested for their activity in the reactive flash volatilisation (RFV) of cellulose to produce synthesis gas in 50ms reaction time. RFV is a catalytic gasification process that utilises a high carbon space velocity and mass flow rate with oxygen and steam as gasification agents. Re-Ni, Rh-Ni and Ru-Ni supported catalysts showed a higher gasification efficiency than the other catalysts, which was because of their higher metal surface area, high reducibility and lower CO desorption temperature. The highest gasification efficiency was achieved at 750C with a carbon-to-oxygen ratio of 0.6 and a carbon-to-steam ratio of 1.0 without any oxygen breakthrough.",
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Catalytic steam gasification of cellulose using reactive flash volatilization. / Chan, Fan Liang; Tanksale, Akshat.

In: ChemCatChem, Vol. 6, No. 9, 2014, p. 2727-2739.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - Catalytic steam gasification of cellulose using reactive flash volatilization

AU - Chan, Fan Liang

AU - Tanksale, Akshat

PY - 2014

Y1 - 2014

N2 - Biomass gasification is considered to be one of the most promising technologies to deliver renewable energy. However, tar formation in the gasifier is one of the main challenges. Ni-based catalysts are one of the most effective transition-metal catalysts in biomass gasification for tar cracking and reforming. Alumina-supported Ni, Pt-Ni, Ru-Ni, Re-Ni and Rh-Ni catalysts were tested for their activity in the reactive flash volatilisation (RFV) of cellulose to produce synthesis gas in 50ms reaction time. RFV is a catalytic gasification process that utilises a high carbon space velocity and mass flow rate with oxygen and steam as gasification agents. Re-Ni, Rh-Ni and Ru-Ni supported catalysts showed a higher gasification efficiency than the other catalysts, which was because of their higher metal surface area, high reducibility and lower CO desorption temperature. The highest gasification efficiency was achieved at 750C with a carbon-to-oxygen ratio of 0.6 and a carbon-to-steam ratio of 1.0 without any oxygen breakthrough.

AB - Biomass gasification is considered to be one of the most promising technologies to deliver renewable energy. However, tar formation in the gasifier is one of the main challenges. Ni-based catalysts are one of the most effective transition-metal catalysts in biomass gasification for tar cracking and reforming. Alumina-supported Ni, Pt-Ni, Ru-Ni, Re-Ni and Rh-Ni catalysts were tested for their activity in the reactive flash volatilisation (RFV) of cellulose to produce synthesis gas in 50ms reaction time. RFV is a catalytic gasification process that utilises a high carbon space velocity and mass flow rate with oxygen and steam as gasification agents. Re-Ni, Rh-Ni and Ru-Ni supported catalysts showed a higher gasification efficiency than the other catalysts, which was because of their higher metal surface area, high reducibility and lower CO desorption temperature. The highest gasification efficiency was achieved at 750C with a carbon-to-oxygen ratio of 0.6 and a carbon-to-steam ratio of 1.0 without any oxygen breakthrough.

KW - biomass

KW - nickel

KW - platinum

KW - rhenium

KW - supported catalysts

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