低碳烷烃作为一种资源丰富且廉价的原料，利用其可制取具有高附加值的烯烃和含氧衍生物，对缓解丙烯和石油资源短缺具有重要的价值。但丙烷在高温下易深度氧化和深度裂解，且催化剂易积碳失活，使得丙烯选择性降低，故迫切需要开发低温高效的催化剂。简要介绍了丙烷氧化脱氢制丙烯的研究意义和钒基催化剂上丙烷氧化脱氢反应的机理，综述了负载型钒基催化剂的载体类型及性质、活性物种引入方式、表面钒物种的还原性能、钒负载量、氧化剂的选择对丙烷氧化脱氢催化活性及对丙烯选择性的影响。
Light alkanes is a cheap chemical material with abundant reserve in the world.Acquisition of olefins and oxy-compounds with high additive value as propylene from propane always attracts extensive attention in industry field,because the study of oxidative dehydrogenation of propane to propylene products has mitigated the propylene and oil resources shortage.However,high temperature not only easily induces serious overoxidation and pyrolysis of pro-pane but also generates catalyst coke.Hence,the development of new catalysts with superior activity at low tempera-tures becomes the research focus in this field.In this paper,the research significance and the vanadium-base catalysts mechanism for the dehydrogenation of propane to propylene are briefly introduced.Moreover,some influence factors on catalytic performance of supported V-base catalysts for oxidative dehydrogenation (ODH)of propane process,such as properties of support material,routes of introducing active species,redox properties,vanadium loading and oxidant selection etc are analyzed in detail.
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