Methanation of biomass pyrolysis gas over Ni catalyst with different supports

XIONG Wei; DING Ming-yue; TU Jun-ling; CHEN Lun-gang; WANG Tie-jun; ZHANG Qi; MA Long-long

Volume 42 Issue 08

Aug. 2014

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Article Navigation > Journal of Fuel Chemistry and Technology > 2014 > 42(08): 958-964

XIONG Wei, DING Ming-yue, TU Jun-ling, CHEN Lun-gang, WANG Tie-jun, ZHANG Qi, MA Long-long. Methanation of biomass pyrolysis gas over Ni catalyst with different supports[J]. Journal of Fuel Chemistry and Technology, 2014, 42(08): 958-964.

Citation:

XIONG Wei, DING Ming-yue, TU Jun-ling, CHEN Lun-gang, WANG Tie-jun, ZHANG Qi, MA Long-long. Methanation of biomass pyrolysis gas over Ni catalyst with different supports[J]. Journal of Fuel Chemistry and Technology, 2014, 42(08): 958-964.

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Methanation of biomass pyrolysis gas over Ni catalyst with different supports

1.
Key Laboratory of Renewable Energy, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China;
2.
University of Chinese Academy of Sciences, Beijing 100049, China

Received Date: 2014-03-04
Rev Recd Date: 2014-05-27
Publish Date: 2014-08-30

Abstract

Abstract

The supported Ni-based catalysts were prepared by impregnation method. Effects of different supports (SiO₂, ZrO₂, CeO₂, Al₂O₃ and Al₂O₃-CeO₂) and water vapour on catalyst microstructure and their performance in biomass pyrolysis gas methanation were investigated. The results indicated that CO conversion increased gradually, and the CH₄ selectivity increased firstly, and then decreased with the increase of adding water vapor amount. Compared to SiO₂, ZrO₂ and CeO₂, Al₂O₃ presented higher BET surface area and Ni metal dispersion, which promoted the activity and selectivity for biomass pyrolysis gas methanation. Furthermore, the Al₂O₃-CeO₂ modified Ni-based catalyst showed more nickel metal loading and active metal dispersion comparing to the Ni-Al₂O₃ catalyst, exhibiting more excellent methanation performances at lower temperature. CO conversion reached 97%, and CH₄ growth rate reached 110% over the Ni-Al₂O₃-CeO₂ catalyst at 300 ℃.
- biomass pyrolysis gas,
- Ni-based catalyst,
- composite supporters,
- methanation

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References(19)

References

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