极低负载量活性组分催化剂对丙烷选择氧化性能的影响  

Study on selective oxidation of propane over supported oxide catalysts with ultra-low loading of active component

作　　者：韩丽艳[1] 罗燕[2] 刘坚[2] 赵震[2] 段爱军[2] 姜桂元[2] 

机构地区：[1]吉林工业职业技术学院应用化工系,吉林吉林132013 [2]中国石油大学重质油国家重点实验室,北京102249

出　　处：《工业催化》2011年第11期41-45,共5页Industrial Catalysis

基　　金：国家自然科学基金(21173270;21177160;20803093;20833011)资助项目;国家高技术研究发展计划(863计划)(2009AA06Z313)资助项目;新世纪优秀人才支持计划(NCET-10-0811)资助项目;博士点基金(200804251016)资助项目;中国石油(2011D-4604-0101)资助项目;创新基金(2010D-5006-0402)资助项目

摘　　要：以SiO_2为载体,采用等体积浸渍法制备了极低负载量活性组分氧化物催化剂,并评价对丙烷选择氧化性能。结果表明,在对丙烷分子氧选择氧化催化反应中,具有相对稳定半充满电子的表面离子结构的催化剂对生成醛类含氧化合物选择性较高。碱金属钾的修饰作用使含氧化合物选择性有较大提高。A series of supported transition metal oxide catalysts wlm ultra-low loaalng oi umcrcm active components were prepared by inc selective oxidation loading of different of propane was ipient-wet impregnation method. Their catalytic performance for the investigated. The results showed that M/Si02 catalysts with ultra-low active components,which had the stable ion configuration with half-full electron struc- ture, exhibited higher selectivity for the oxidation of propane to aldehydes. The activity and selectivity of the catalysts were greatly enhanced by the addition of potassium.

关 键 词：催化化学 丙烷 选择氧化.负载氧化物 钾修饰 

分 类 号：O643.36[理学—物理化学]