Effects of Yb2O3 promotor on the performance of Ni/SiC catalysts in CO2 reforming of CH4

GUO Peng-fei; JIN Guo-qiang; GUO Cong-xiu; WANG Ying-yong; TONG Xi-li; GUO Xiang-yun

Volume 42 Issue 06

Jun. 2014

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Article Navigation > Journal of Fuel Chemistry and Technology > 2014 > 42(06): 719-726

GUO Peng-fei, JIN Guo-qiang, GUO Cong-xiu, WANG Ying-yong, TONG Xi-li, GUO Xiang-yun. Effects of Yb2O3 promotor on the performance of Ni/SiC catalysts in CO2 reforming of CH4[J]. Journal of Fuel Chemistry and Technology, 2014, 42(06): 719-726.

Citation:

GUO Peng-fei, JIN Guo-qiang, GUO Cong-xiu, WANG Ying-yong, TONG Xi-li, GUO Xiang-yun. Effects of Yb₂O₃ promotor on the performance of Ni/SiC catalysts in CO₂ reforming of CH₄[J]. Journal of Fuel Chemistry and Technology, 2014, 42(06): 719-726.

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Effects of Yb₂O₃ promotor on the performance of Ni/SiC catalysts in CO₂ reforming of CH₄

1.
State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China;
2.
University of Chinese Academy of Sciences, Beijing 100049, China

Received Date: 2014-03-06
Rev Recd Date: 2014-05-04
Publish Date: 2014-06-30

Abstract

Abstract

Ni/SiC and Ni-Ybx/SiC (x=2%, 4%, 6%,10%) catalysts were prepared by the impregnation method, and the performances of catalysts in the carbon dioxide reforming of methane were studied in a fixed-bed reactor.The catalysts were characterized by BET, ICP-AES, XRD, H₂-TPR, TG-DTA, XPS and TEM techniques.The experimental results indicate that the appropriate addition amount of Yb is 4% to 6%.Ni-Yb4/SiC and Ni-Yb6/SiC catalysts exhibit excellent catalytic activity and stability at 800 ℃, and the conversion of CH₄ and CO₂ can be maintained over 90% during the 100 h testing. Yb₂O₃ promotor can inhibit the growth of nickel nanoparticles and reduce the amount of carbon deposition,therefore Ni-Yb/SiC catalysts show stable activity in the continuous reforming reaction.
- CO₂ reforming of CH₄,
- Ni-Yb/SiC catalyst,
- promotor,
- stability

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References(22)

References

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