Catalyst property of Co-Fe alloy particles in the steam reforming of biomass tar and toluene

Lei Wang; Yuji Hisada; Mitsuru Koike; Dalin Li; Hideo Watanabe; Yoshinao Nakagawa; Keiichi Tomishige

doi:10.1016/j.apcatb.2012.03.025

Catalyst property of Co-Fe alloy particles in the steam reforming of biomass tar and toluene

Lei Wang, Yuji Hisada, Mitsuru Koike, Dalin Li, Hideo Watanabe, Yoshinao Nakagawa, Keiichi Tomishige

ENG - Applied Chemistry

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

68 Citations (Scopus)

Abstract

Performance of Co-Fe/Al ₂O ₃ catalysts with the optimum composition (Fe/Co=0.25) was much higher than corresponding monometallic Co and Fe catalysts in the steam reforming of tar from the pyrolysis of cedar wood in terms of the catalytic activity and the suppression of coke deposition. According to the catalyst characterization, the fcc and bcc Co-Fe alloys were formed by H ₂ reduction on the Co-Fe/Al ₂O ₃ catalyst. In the steam reforming of toluene, the addition of H ₂ to the reactant gas enhanced the activity of Co-Fe/Al ₂O ₃ remarkably. Without H ₂ addition, bcc Co-Fe alloy particles were oxidized and this is connected to the deactivation. With H ₂ addition, the bcc Co-Fe alloy with an appropriate composition is maintained in metallic state and it contribute to high activity in the steam reforming of toluene.

Original language	English
Pages (from-to)	95-104
Number of pages	10
Journal	Applied Catalysis B: Environmental
Volume	121-122
DOIs	https://doi.org/10.1016/j.apcatb.2012.03.025
Publication status	Published - 2012 Jun 13

Keywords

Alloy
Biomass
Cobalt
Iron
Steam reforming
Tar

ASJC Scopus subject areas

Catalysis
Environmental Science(all)
Process Chemistry and Technology

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title = "Catalyst property of Co-Fe alloy particles in the steam reforming of biomass tar and toluene",

abstract = "Performance of Co-Fe/Al 2O 3 catalysts with the optimum composition (Fe/Co=0.25) was much higher than corresponding monometallic Co and Fe catalysts in the steam reforming of tar from the pyrolysis of cedar wood in terms of the catalytic activity and the suppression of coke deposition. According to the catalyst characterization, the fcc and bcc Co-Fe alloys were formed by H 2 reduction on the Co-Fe/Al 2O 3 catalyst. In the steam reforming of toluene, the addition of H 2 to the reactant gas enhanced the activity of Co-Fe/Al 2O 3 remarkably. Without H 2 addition, bcc Co-Fe alloy particles were oxidized and this is connected to the deactivation. With H 2 addition, the bcc Co-Fe alloy with an appropriate composition is maintained in metallic state and it contribute to high activity in the steam reforming of toluene.",

keywords = "Alloy, Biomass, Cobalt, Iron, Steam reforming, Tar",

author = "Lei Wang and Yuji Hisada and Mitsuru Koike and Dalin Li and Hideo Watanabe and Yoshinao Nakagawa and Keiichi Tomishige",

year = "2012",

month = jun,

day = "13",

doi = "10.1016/j.apcatb.2012.03.025",

language = "English",

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T1 - Catalyst property of Co-Fe alloy particles in the steam reforming of biomass tar and toluene

AU - Wang, Lei

AU - Hisada, Yuji

AU - Koike, Mitsuru

AU - Li, Dalin

AU - Watanabe, Hideo

AU - Nakagawa, Yoshinao

AU - Tomishige, Keiichi

PY - 2012/6/13

Y1 - 2012/6/13

N2 - Performance of Co-Fe/Al 2O 3 catalysts with the optimum composition (Fe/Co=0.25) was much higher than corresponding monometallic Co and Fe catalysts in the steam reforming of tar from the pyrolysis of cedar wood in terms of the catalytic activity and the suppression of coke deposition. According to the catalyst characterization, the fcc and bcc Co-Fe alloys were formed by H 2 reduction on the Co-Fe/Al 2O 3 catalyst. In the steam reforming of toluene, the addition of H 2 to the reactant gas enhanced the activity of Co-Fe/Al 2O 3 remarkably. Without H 2 addition, bcc Co-Fe alloy particles were oxidized and this is connected to the deactivation. With H 2 addition, the bcc Co-Fe alloy with an appropriate composition is maintained in metallic state and it contribute to high activity in the steam reforming of toluene.

AB - Performance of Co-Fe/Al 2O 3 catalysts with the optimum composition (Fe/Co=0.25) was much higher than corresponding monometallic Co and Fe catalysts in the steam reforming of tar from the pyrolysis of cedar wood in terms of the catalytic activity and the suppression of coke deposition. According to the catalyst characterization, the fcc and bcc Co-Fe alloys were formed by H 2 reduction on the Co-Fe/Al 2O 3 catalyst. In the steam reforming of toluene, the addition of H 2 to the reactant gas enhanced the activity of Co-Fe/Al 2O 3 remarkably. Without H 2 addition, bcc Co-Fe alloy particles were oxidized and this is connected to the deactivation. With H 2 addition, the bcc Co-Fe alloy with an appropriate composition is maintained in metallic state and it contribute to high activity in the steam reforming of toluene.

KW - Alloy

KW - Biomass

KW - Cobalt

KW - Iron

KW - Steam reforming

KW - Tar

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