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Effect of CeO_2 Promoter on the Performance of Catalyst for CH_4, CO_2with O_2 to Synthesis Gas 被引量:1
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作者 Li Yong FU qun biao wang +2 位作者 Shao Jie LU Wei Guo XIE Fa Li QIU(The key Laboratory of Natural Gas Chemistry Chengdu Institute of Organic Chemistry,The Chinese Academy of Sciences, Chengdu 610041) 《Chinese Chemical Letters》 SCIE CAS CSCD 1999年第11期967-970,共4页
In the reaction of mathane, carbon dioxide with oxygen to synthesis gas, conversion ofCH4 was increased, but CO selectivity was reduced when CeO2 was added to Ni/CaO-Al2O3catalyst The characterization of TPR, XPS. XRD... In the reaction of mathane, carbon dioxide with oxygen to synthesis gas, conversion ofCH4 was increased, but CO selectivity was reduced when CeO2 was added to Ni/CaO-Al2O3catalyst The characterization of TPR, XPS. XRD and H2-TPD exhibited that, on one hand, theCeO2 promoter decreased the reduction temperature of catalyst. On the other hand, addition ofCeO2 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 ofcatalyst. In addition, the existence of CeO2 was beneficial to decrease the Ni crystal particle size. 展开更多
关键词 METHANE carbon dioxide OXYGEN synthesis gas.
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