Fischer-Tropsch synthesis by nano-structured iron catalyst

查看全文 作　　者：Ali Nakhaei [1,2]Pour;Mohammad Reza [1]Housaindokht;Sayyed Faramarz [1]Tayyari;Jamshid [2]Zarkesh

机构地区：[1]Department of Chemistry,Ferdowsi University of Mashhad;[2]Research Institute of Petroleum Industry of National Iranian Oil Company,Gas Research Division

出　　处：《Journal of Natural Gas Chemistry》索引2010年第19卷第3期,共9页

摘　　要：Effects of nanoscale iron oxide particles on textural structure,reduction,carburization and catalytic behavior of precipitated iron catalyst in Fischer-Tropsch synthesis(FTS) are investigated.Nanostructured iron catalysts were prepared by microemulsion method in two series.Firstly,Fe2O3 ,CuO and La2O3 nanoparticles were prepared separately and were mixed to attain Fe/Cu/La nanostructured catalyst(sep-nano catalyst);Secondly nanostructured catalyst was prepared by co-precipitation in a water-in-oil microemulsion method(mix-nano catalyst).Also,conventional iron catalyst was prepared with common co-precipitation method.Structural characterizations of the catalysts were performed by TEM,XRD,H2 and CO-TPR tests.Particle size of iron oxides for sep-nano and mix-nano catalysts,which were determined by XRD pattern(Scherrer equation) and TEM images was about 20 and 21.6 nm,respectively.Catalyst evaluation was conducted in a fixed-bed stainless steel reactor and compared with conventional iron catalyst.The results revealed that FTS reaction increased while WGS reaction and olefin/paraffin ratio decreased in nanostructured iron catalysts. 关键词：铁催化剂纳米结构费托合成透射电子显微镜纳米催化剂固定床反应器 X射线衍射共沉淀法

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Fischer-Tropsch synthesis by nano-structured iron catalyst

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