SCI和EI收录∣中国化工学会会刊

›› 2017, Vol. 25 ›› Issue (5): 602-608.DOI: 10.1016/j.cjche.2016.10.019

• Catalysis, Kinetics and Reaction Engineering • Previous Articles     Next Articles

Catalytic methanation of syngas over Ni-based catalysts with different supports

Yincong Liu, Lingjun Zhu, Xiaoliu Wang, Shi Yin, Furong Leng, Fan Zhang, Haizhou Lin, Shurong Wang   

  1. State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China
  • Received:2016-08-16 Revised:2016-10-30 Online:2017-07-06 Published:2017-05-28

Catalytic methanation of syngas over Ni-based catalysts with different supports

Yincong Liu, Lingjun Zhu, Xiaoliu Wang, Shi Yin, Furong Leng, Fan Zhang, Haizhou Lin, Shurong Wang   

  1. State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China
  • 通讯作者: Shurong Wang,E-mail address:srwang@zju.edu.cn

Abstract: Co-precipitation method was selected for the preparation of Ni/Al2O3, Ni/ZrO2 and Ni/CeO2 catalysts, and their performances in methanation were investigated in this study. The structure and surface properties of these catalysts were characterized by BET, XRD, H2-TPD, TEM and H2-TPR. The results showed that the catalytic activity at low temperature followed the order:Ni/Al2O3 > Ni/ZrO2 > Ni/CeO2. Ni/Al2O3 catalyst presented the best catalytic performance with the highest CH4 selectivity of 94.5%. The characterization results indicated that the dispersion of the active component Ni was the main factor affecting the catalytic activity and the one with higher dispersion gave better performance.

Key words: Methanation, Ni dispersion, Catalytic activity, Catalyst support, Stability

摘要: Co-precipitation method was selected for the preparation of Ni/Al2O3, Ni/ZrO2 and Ni/CeO2 catalysts, and their performances in methanation were investigated in this study. The structure and surface properties of these catalysts were characterized by BET, XRD, H2-TPD, TEM and H2-TPR. The results showed that the catalytic activity at low temperature followed the order:Ni/Al2O3 > Ni/ZrO2 > Ni/CeO2. Ni/Al2O3 catalyst presented the best catalytic performance with the highest CH4 selectivity of 94.5%. The characterization results indicated that the dispersion of the active component Ni was the main factor affecting the catalytic activity and the one with higher dispersion gave better performance.

关键词: Methanation, Ni dispersion, Catalytic activity, Catalyst support, Stability