Combined Air Partial Oxidation and CO2 Reforming of Methane to Synthesis Gas over Co-precipitated Ni-Mg-ZrO2 Catalysts

摘要：

The present study aims at developing a novel process to utilize the coal bed methane and other resources which contain methane,air and carbon dioxide.It is expected that low-cost synthesis gas can be produced by the combined air partial oxidation and CO2 reforming of methane without pre-separation and purification.For this purpose,the co-precipitated Ni-Mg-ZrO2 catalyst was prepared.It was found that the co-precipitated Ni-Mg-ZrO2 catalyst exhibited the best activity and stability at 800 oC during the reaction.The conversion of CH4 and CO2 could be achieved as high as 99％ and 82％ respectively during 120 h of reaction.The H2/CO ratio in product was mainly dependent on the feed gas composition.By changing CO2/air ratio of the feed gases,H2/CO ratio between 0.8 and 1.8 could be achieved.The effect of Ni loading and reaction temperature were also investigated.The experimental results showed that the properties of the support,the interaction between metal and support,and the appropriate ability of catalyst to be reduced played important roles in improving the activity and stability of the catalyst

关键词： catalytic air partial oxidation:CO2 reforming:synthesis gas:Ni-Mg-ZrO2 catalyst

作者: Laizhi Sun Yisheng Tan Qingde Zhang Hongjuan Xie Yizhuo Hana

作者单位: State Key Laboratory of Coal Conversion,Institute of Coal Chemistry,Chinese Academy of Sciences,Taiy State Key Laboratory of Coal Conversion,Institute of Coal Chemistry,Chinese Academy of Sciences,Taiy

会议类型: 国际会议

会议名称: The 8th International Symposium on Gas Cleaning at High Temperatures(第八届国际高温气体净化技术研讨会 GCHT-8)

会议地点: 太原

会议语种:英文

页码: 668-682

在线出版日期: 2010-08-23（万方平台首次上网日期，不代表论文的发表时间）