Catalytic activity and sulfur-resistance stability of Ni-Mo-based catalysts for syngas methanation

WANG Yuhan1 BAI Siyu2 CUI Lijie1 LIU Jiao3 YU Jian3 XU Guangwen4

(1.University of Chinese Academy of Sciences, Beijing, China 100049)
(2.China University of Mining and Technology, Xuzhou, Jiangsu, China 221008)
(3.Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China 100190)
(4.Shenyang University of Chemical Technology, Shenyang, Liaoning, China 110142)

【Abstract】A series of Ni-Mo-based catalysts, prepared by precipitation-impregnation method, were studied for catalytic activity and sulfur resistance in a fixed bed reactor. Different characterization techniques were adopted to interpret their reaction mechanisms. Compared to the catalysts with supports of NaY, γ-Al2O3 and pseudoboehmite (PB), the catalyst with MCM-41 support showed superior activity and stability. The characterization on catalysts before and after reaction showed that Ni-Mo interaction played a critical role in catalyst performance. In the catalyst supported with MCM-41, the Ni-Mo interaction resulted in appropriate interaction between active species and support. The reduced active Ni was homogeneously dispersed on support surface, which enhanced the sulfur-resistance stability and anti-carbon deposition. Different Ni/Mo ratios also affected the Ni-Mo interaction in catalysts. It was found that the 20Ni-10Mo/MCM-41 catalysts exhibited the best performance.

【Keywords】 methane; sulfur resistance; catalyst; MCM-41; carbon monoxide; syngas;


【Funds】 National High Technology Research and Development Program of China (2015AA050502)

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This Article


CN: 11-1946/TQ

Vol 69, No. 05, Pages 2063-2072

May 2018


Article Outline


  • Introduction
  • 1 Experimental
  • 2 Results and discussion
  • 3 Conclusions
  • References