Citation: ZHANG Jun-feng, BAI Yun-xing, ZHANG Qing-de, XIE Hong-juan, TAN Yi-sheng, HAN Yi-zhuo. Low temperature methanation of syngas in a slurry reactor over Zr-doped Ni/γ-Al₂O₃ catalyst[J]. Journal of Fuel Chemistry and Technology, ;2013, 41(8): 966-971. shu

Low temperature methanation of syngas in a slurry reactor over Zr-doped Ni/γ-Al₂O₃ catalyst

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

Corresponding author: TAN Yi-sheng, HAN Yi-zhuo,
Received Date: 31 May 2013
Available Online: 17 June 2013
Fund Project:

Zr-doped Ni/γ-Al₂O₃ catalyst was prepared by co-impregnation of Ni and Zr on γ-Al₂O₃; over it, the methanation of syngas at low temperature (300~330 ℃) in a slurry reactor was investigated. Compared with single NiO and Ni/γ-Al₂O₃, the catalytic performance of the Zr-doped Ni/γ-Al₂O₃ is greatly improved. Under optimized condition, a high CO conversion of 86.41% and a selectivity of 90.53% to CH₄ are achieved at a GHSV of 4 200 mL·g^-1·h^-1. XRD, TEM and H₂-TPR results suggest that the doping of Zr promotes dispersion of Ni on γ-Al₂O₃, weakens the interaction between Ni and the support and suppresses the formation of NiAl₂O₄ spinel with low methanation activity; all these may contribute to the excellent performance of the Zr-doped Ni/γ-Al₂O₃ catalyst in syngas methanation.
- syngas,
- methanation,
- natural gas,
- slurry reactor,
- low temperature
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沈阳化工大学材料科学与工程学院沈阳 110142

Low temperature methanation of syngas in a slurry reactor over Zr-doped Ni/γ-Al2O3 catalyst

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通讯作者: 陈斌, bchen63@163.com

Low temperature methanation of syngas in a slurry reactor over Zr-doped Ni/γ-Al₂O₃ catalyst