Novel catalysts for gasification of biomass with high conversion efficiency

Keiichi Tomishige; Mohammad Asadullah; Kimio Kunimori

doi:10.1023/B:CATS.0000008162.69178.17

Novel catalysts for gasification of biomass with high conversion efficiency

Keiichi Tomishige, Mohammad Asadullah, Kimio Kunimori

Research output: Contribution to journal › Article › peer-review

22 Citations (Scopus)

Abstract

We have developed catalysts for the gasification of biomass with much higher energy efficiency than the conventional methods (noncatalyst, dolomite, and commercial steam reforming Ni catalyst). In our investigation, the Rh/CeO₂ gave high yields of syngas for cellulose gasification using a fluidized-bed reactor with batch feeding of cellulose. However, the catalyst was deactivated because of sintering of CeO₂ during the reaction. To prevent the CeO₂ sintering, we have further improved the catalyst and found that Rh/CeO₂/SiO₂ was quite stable for the gasification of cellulose. It was demonstrated that Rh/CeO₂/SiO ₂ gave almost complete gasification of real biomass (wood powder) at 873 K. These results indicate that the combination of this kind of catalyst and fluidized-bed reactor can realize the energy-efficient biomass gasification.

Original language	English
Pages (from-to)	219-233
Number of pages	15
Journal	Catalysis Surveys from Asia
Volume	7
Issue number	4
DOIs	https://doi.org/10.1023/B:CATS.0000008162.69178.17
Publication status	Published - 2003 Dec 1
Externally published	Yes

Keywords

Biomass
Catalytic gasification
Cellulose
Fluidized bed
Synthesis gas

ASJC Scopus subject areas

Catalysis
Chemistry(all)

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abstract = "We have developed catalysts for the gasification of biomass with much higher energy efficiency than the conventional methods (noncatalyst, dolomite, and commercial steam reforming Ni catalyst). In our investigation, the Rh/CeO2 gave high yields of syngas for cellulose gasification using a fluidized-bed reactor with batch feeding of cellulose. However, the catalyst was deactivated because of sintering of CeO2 during the reaction. To prevent the CeO2 sintering, we have further improved the catalyst and found that Rh/CeO2/SiO2 was quite stable for the gasification of cellulose. It was demonstrated that Rh/CeO2/SiO 2 gave almost complete gasification of real biomass (wood powder) at 873 K. These results indicate that the combination of this kind of catalyst and fluidized-bed reactor can realize the energy-efficient biomass gasification.",

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AU - Tomishige, Keiichi

AU - Asadullah, Mohammad

AU - Kunimori, Kimio

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N2 - We have developed catalysts for the gasification of biomass with much higher energy efficiency than the conventional methods (noncatalyst, dolomite, and commercial steam reforming Ni catalyst). In our investigation, the Rh/CeO2 gave high yields of syngas for cellulose gasification using a fluidized-bed reactor with batch feeding of cellulose. However, the catalyst was deactivated because of sintering of CeO2 during the reaction. To prevent the CeO2 sintering, we have further improved the catalyst and found that Rh/CeO2/SiO2 was quite stable for the gasification of cellulose. It was demonstrated that Rh/CeO2/SiO 2 gave almost complete gasification of real biomass (wood powder) at 873 K. These results indicate that the combination of this kind of catalyst and fluidized-bed reactor can realize the energy-efficient biomass gasification.

AB - We have developed catalysts for the gasification of biomass with much higher energy efficiency than the conventional methods (noncatalyst, dolomite, and commercial steam reforming Ni catalyst). In our investigation, the Rh/CeO2 gave high yields of syngas for cellulose gasification using a fluidized-bed reactor with batch feeding of cellulose. However, the catalyst was deactivated because of sintering of CeO2 during the reaction. To prevent the CeO2 sintering, we have further improved the catalyst and found that Rh/CeO2/SiO2 was quite stable for the gasification of cellulose. It was demonstrated that Rh/CeO2/SiO 2 gave almost complete gasification of real biomass (wood powder) at 873 K. These results indicate that the combination of this kind of catalyst and fluidized-bed reactor can realize the energy-efficient biomass gasification.

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