Citation: Li Yong FU, Qun Biao WANG, Shao Jie LU, Wei Guo XIE, Fa Li QIU. Effect of CeO₂ Promoter on the Performance of Catalyst for CH₄, CO₂with O₂ to Synthesis Gas[J]. Chinese Chemical Letters, ;1999, 10(11): 967-970. shu

Effect of CeO₂ Promoter on the Performance of Catalyst for CH₄, CO₂with O₂ to Synthesis Gas

The key Laboratory of Natural Gas Chemistry Chengdu Institute of Organic Chemistry The Chinese Academy of Sciences Chengdu 610041

Received Date: 11 June 1999

In the reaction of methane, carbon dioxide with oxygen to synthesis gas, conversion of CH₄ was increased, but CO selectivity was reduced when CeO₂ was added to Ni/Ca0-Al₂O₄ catalyst.The characterization of TPR, XPS, XRD and H₂-TPD exhibited that, on one hand, the CeO₂ promoter decreased the reduction temperature of catalyst.On the other hand, addition of CeO₂ resulted in an increase in the electron density of active component Ni, and as a result, reduced the ability of CH₄ deep cracking and enhanced the resistance to carbon-deposition of catalyst.In addition; the existence of CeO₂ was beneficial to decrease the Ni crystal particle size.
- Methane,
- carbon dioxide,
- oxygen,
- synthesis gas
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